ASP.NET MVC provides separation of concerns, extensibility, and testability compared to other frameworks. However, it has a steeper learning curve and is more complex. Model binding maps form and query string values to model properties. Data annotations provide validation attributes and metadata. Views are rendered using Razor syntax which allows mixing HTML and C# code.
ASP.NET MVC provides separation of concerns, extensibility, and testability advantages compared to other frameworks. It has a learning curve and is more complex. The MVC pattern uses models to manage data and business logic, views for presentation, and controllers to handle user input and response. Model binding maps user input to model properties using value providers and model binders. Data annotations provide validation attributes. Views are rendered using layouts and can pass data and render partial views. Razor syntax combines HTML and C# code in views. Security concerns include XSS and CSRF prevention.
AngularJs Workshop SDP December 28th 2014Ran Wahle
This document provides an overview and agenda for a training on AngularJS. It introduces key concepts in AngularJS like modules, dependency injection, data binding with controllers and scopes, services, filters, directives, forms, and routing. Code examples are provided to demonstrate creating modules, controllers, services, binding data between the view and model, and using built-in and custom directives. The training will cover building AngularJS applications with a focus on best practices.
AngularJS is an open-source JavaScript framework for building dynamic web applications. It uses HTML as the template language and allows extending HTML vocabulary for the application. The key concepts covered in the document include modules and dependency injection, data binding using controllers and scopes, services, filters, form validation, directives, and routing. Various AngularJS features like modules, controllers, services, directives etc. are demonstrated via code examples. The document provides an introduction to core AngularJS concepts through explanations, code samples and a demo.
MVC Design Pattern in JavaScript by ADMEC Multimedia InstituteRavi Bhadauria
This presentation is one of the best presentations from our study material for our JavaScript Object Oriented workshops which ADMEC conducts every week at the
center.
The document discusses the Model-View-Presenter (MVP) pattern for developing Android applications. It describes the roles of the model, view, and presenter, and how the presenter acts as a mediator between the model and view. It also covers how to implement MVP for a sample "TaskIt" app, including defining view and presenter interfaces. Finally, it discusses how to test MVP apps through dependency injection and mocking the model and view in unit and UI tests.
Code Camp 06 Model View Presenter Architecturebitburner93
This is the slide show I created for the first Twin Cities Code Camp in November of \'06 - I did this when I was working for Digineer and also used it in a Digi-U session that I put on for the other consultants.
Angular workshop - Full Development GuideNitin Giri
AngularJS provides powerful tools for building single page applications, including data binding, scopes, controllers, directives, filters and forms validation. It follows an MVC pattern with two-way data binding between models and views. Key features include directives for creating custom HTML elements, filters for formatting data and built-in validation for forms. AngularJS aims to improve frontend development by reducing code and server interactions.
ASP.NET MVC provides separation of concerns, extensibility, and testability advantages compared to other frameworks. It has a learning curve and is more complex. The MVC pattern uses models to manage data and business logic, views for presentation, and controllers to handle user input and response. Model binding maps user input to model properties using value providers and model binders. Data annotations provide validation attributes. Views are rendered using layouts and can pass data and render partial views. Razor syntax combines HTML and C# code in views. Security concerns include XSS and CSRF prevention.
AngularJs Workshop SDP December 28th 2014Ran Wahle
This document provides an overview and agenda for a training on AngularJS. It introduces key concepts in AngularJS like modules, dependency injection, data binding with controllers and scopes, services, filters, directives, forms, and routing. Code examples are provided to demonstrate creating modules, controllers, services, binding data between the view and model, and using built-in and custom directives. The training will cover building AngularJS applications with a focus on best practices.
AngularJS is an open-source JavaScript framework for building dynamic web applications. It uses HTML as the template language and allows extending HTML vocabulary for the application. The key concepts covered in the document include modules and dependency injection, data binding using controllers and scopes, services, filters, form validation, directives, and routing. Various AngularJS features like modules, controllers, services, directives etc. are demonstrated via code examples. The document provides an introduction to core AngularJS concepts through explanations, code samples and a demo.
MVC Design Pattern in JavaScript by ADMEC Multimedia InstituteRavi Bhadauria
This presentation is one of the best presentations from our study material for our JavaScript Object Oriented workshops which ADMEC conducts every week at the
center.
The document discusses the Model-View-Presenter (MVP) pattern for developing Android applications. It describes the roles of the model, view, and presenter, and how the presenter acts as a mediator between the model and view. It also covers how to implement MVP for a sample "TaskIt" app, including defining view and presenter interfaces. Finally, it discusses how to test MVP apps through dependency injection and mocking the model and view in unit and UI tests.
Code Camp 06 Model View Presenter Architecturebitburner93
This is the slide show I created for the first Twin Cities Code Camp in November of \'06 - I did this when I was working for Digineer and also used it in a Digi-U session that I put on for the other consultants.
Angular workshop - Full Development GuideNitin Giri
AngularJS provides powerful tools for building single page applications, including data binding, scopes, controllers, directives, filters and forms validation. It follows an MVC pattern with two-way data binding between models and views. Key features include directives for creating custom HTML elements, filters for formatting data and built-in validation for forms. AngularJS aims to improve frontend development by reducing code and server interactions.
This document provides an introduction and overview of AJAX (Asynchronous JavaScript And XML). It explains that AJAX is not a new technology, but rather a combination of existing technologies like HTML, JavaScript, DHTML and DOM. AJAX allows for asynchronous data retrieval, which can make web applications more interactive and user-friendly by updating parts of a page without reloading the whole page. The key component that enables asynchronous requests is the XMLHttpRequest object, which is used to facilitate communication between the client and server.
This document provides an overview of AngularJS including that it is 100% JavaScript and client-side, uses an MVC pattern, and key concepts like data binding, templating, routing, and dependency injection. It also describes components like directives, controllers, services, and filters and includes code samples to demonstrate concepts like scopes, bindings, and organizing an Angular application.
Will your code blend? : Toronto Code Camp 2010 : Barry GervinBarry Gervin
XAML getting you down? Tired of the repetition of trial by error WPF or Silverlight development? If you’re not using Expression Blend to build your XAML, you’re doing it all wrong. Let’s take a look at the common pitfalls that new Silverlight developers fall into that make their code unblendable, and then leverage the patterns and techniques that allow us to unlock the virtues of Expression Blend. Testability, blendability, inner peace and maintainability are just 1 hour away
AngularJs Mini-Challenges is a growing collection of “Challenges” about the most quirky parts of the AngularJs framework. It encourage you to find and fix common mistakes and subtle bugs, as well as performance issues and bad practices, that non-expert AngularJs programmers may encounter on their endeavours into the depths of the framework.
AngularJs Mini-Challenges does not aim to teach you AngularJs. Former knowledge of the Framework is strongly recommended in order to understand the topics covered in this Challenges.
The document discusses Knockout, a JavaScript library for building dynamic user interfaces. It provides an overview of Knockout's core concepts including declarative bindings, dependency tracking, and templates. It also describes common patterns for using Knockout such as MVVM and building views, view models, and models. Key bindings and functionality are defined including observables, computed observables, and observable arrays.
This document provides an introduction and overview of AngularJS including its main concepts such as MVC, dependency injection, directives, filters, data binding, routing and REST services. It also discusses Angular scaffolding tools like Yeoman and provides examples of building an Angular application including fetching data from REST APIs and implementing routing. The document contains an agenda with topics and code snippets for controllers, views, directives and services. It also includes exercises for practicing key AngularJS concepts like data binding, routing and consuming REST services.
Java Server Faces (JSF) is a Java web development framework that provides reusable UI components and a component-based MVC architecture. Key aspects of JSF include:
- Clean separation of behavior and presentation using a component-based MVC model.
- Standard UI components and events tied to server-side code.
- Typical JSF applications include JavaBeans for state/behavior, event-driven development, and JSP view pages that reference a component tree.
The example JSF calculator application demonstrates:
1) Configuring the Faces servlet and managed beans.
2) Developing a model class and controller to mediate between the view and model.
3) Creating
This document provides a summary of the major new features in JavaServer Faces (JSF) 2.0, including Facelets as the preferred view declaration language, composite components, Ajax support, partial state saving, view parameters, system events, resources, behaviors, view traversal, annotations, navigation, exceptions, validation, EL improvements, and new scopes. It highlights contributions from the JSF expert group and community and provides resources for learning more about JSF 2.0.
This document provides an overview of AngularJS, including its philosophy and architecture. AngularJS aims to simplify development by providing model-view-controller frameworks and dependency injection. It advocates for declarative code for building user interfaces rather than imperative code. The document also discusses AngularJS concepts like templates, scopes, models, repeaters, filters and custom directives to build single page applications.
Design Patterns in ZK: Java MVVM as Model-View-BinderSimon Massey
This document discusses different patterns for separating the view, model, and controller/presenter layers in a ZK application. It describes the MVP, MVC, and MVVM/MVB patterns and compares their approaches. It provides best practices for implementing each layer, such as avoiding business logic in the view and using databinding to sync the view and model. The document emphasizes that the view model pattern focuses on separating application state and behavior from the view using databinding annotations.
Single-page applications (SPAs) take user interaction with web applications to a new level. This means that more logic will be moved to the web browser and we have to become more familiar with JavaScript. AngularJS is one of the leading JavaScript frameworks when talking about SPAs. In this workshop I will present AngularJS in terms of problems it addresses and how it does this. Together we will develop a single-page application and we will go through how traditional concepts of web applications (data and state management, authentication) can be solved using the framework. Furthermore, we will dive into typical pitfalls when developing applications using AngularJS and will see how we can avoid them.
The document discusses ASP.NET MVC framework concepts including:
- MVC architecture divides applications into models, views, and controllers. Models manage state, views display UI, and controllers handle user input and choose views.
- Advantages of MVC include clean separation of concerns, testable UI, reuse of views/models, and organized code.
- The Razor view engine renders HTML from dynamic server-side code using a specially designed parser.
- ASP.NET MVC classes are in the System.Web.Mvc namespace which contains controllers, views, and other core classes.
Just a View: An Introduction To Model-View-Controller PatternAaron Nordyke
This document discusses model-view-controller (MVC), including its separation of concerns and observer pattern. It highlights templating libraries and MVC frameworks as useful tools. MVC separates an application into three components - the model, the view, and the controller - with the observer pattern coordinating changes between them. Templating libraries and MVC frameworks make implementing MVC easier by handling concerns like updating views on model changes and separating programming logic from user interface markup.
The document discusses how to prevent JavaScript injection attacks in ASP.NET MVC applications. It describes a customer feedback website that is vulnerable to JavaScript injection by displaying user-submitted content without encoding. It then presents two approaches to prevent this: 1) HTML encoding user data when displayed in views, and 2) HTML encoding user data before saving to the database in controllers. Encoding replaces dangerous HTML characters to neutralize malicious JavaScript while preserving the data's meaning.
Visual Studio 2010 Ultimate Architecture Experience : Toronto Code Camp 2010 ...Barry Gervin
This document discusses how Visual Studio 2010 helps developers and architects manage complexity. It outlines features that help understand existing code through tools like the Architecture Explorer and sequence diagram generation. It also describes how VS 2010 supports modeling the domain using UML diagrams. Additionally, it discusses how layer diagrams and work item integration can help maintain control and enforce architectural decisions.
This document provides an overview of key concepts in AngularJS including two-way data binding, directives, modules, controllers, expressions, validation, filters, services, dependency injection, and custom directives and services. It explains how AngularJS uses directives, modules, and controllers to organize code. It also covers core functions like data binding, validation, filters, and dependency injection via the injector.
The document discusses the MVC architecture pattern and how it is commonly implemented using Java technologies like Servlets, JSPs, and frameworks like Struts. It describes the core components of MVC - the Model, View, and Controller layers. The Model contains the business logic and data access code. The View is responsible for presentation and user interface. The Controller accepts user input and interfaces with the Model to handle requests. Frameworks like Struts provide libraries and utilities to simplify building applications using the MVC pattern.
The document discusses application-managed entity managers in Java applications. Application-managed entity managers allow Java applications like Swing programs to use JPA for persistence without requiring an EJB container. These applications manage the entity manager lifecycle directly and typically use resource-local transactions instead of JTA transactions. The document provides an example Java application that creates an entity manager factory, performs transactions to add and retrieve an entity, and closes resources.
Top 10 qhse interview questions and answersNickiMinaj789
This document provides a list of useful materials for QSHE interviews, including types of common interview questions, examples of situational and behavioral interviews, and tips for preparing for and answering different types of questions. It lists over 50 links to resources on topinterviewquestions.info that cover topics such as the most frequent interview questions, how to prepare for an interview, dressing appropriately, following up after an interview, and more. The extensive list of additional resources indicates this is a comprehensive guide to preparing for a QSHE interview.
Entity Framework, Code First, Database First, TPH, TPT, TPC. Table Per Type, Table Per Hierarchy, Table Per Concrete Class, EF Concurrency, EF Relationship, Code First Conventions
Top 10 pharmacy interview questions and answersNickiMinaj789
This document provides a summary of useful materials for pharmacy job interviews, including common interview questions, tips for answering questions, and sample follow-up letters. It lists over 50 links to resources on a website that contain free ebooks, articles, and guides on interview preparation, question types, sample answers for questions like "what are your strengths?", and more. The document aims to equip job applicants in the pharmacy field with extensive information to feel prepared for interviews.
This document provides an introduction and overview of AJAX (Asynchronous JavaScript And XML). It explains that AJAX is not a new technology, but rather a combination of existing technologies like HTML, JavaScript, DHTML and DOM. AJAX allows for asynchronous data retrieval, which can make web applications more interactive and user-friendly by updating parts of a page without reloading the whole page. The key component that enables asynchronous requests is the XMLHttpRequest object, which is used to facilitate communication between the client and server.
This document provides an overview of AngularJS including that it is 100% JavaScript and client-side, uses an MVC pattern, and key concepts like data binding, templating, routing, and dependency injection. It also describes components like directives, controllers, services, and filters and includes code samples to demonstrate concepts like scopes, bindings, and organizing an Angular application.
Will your code blend? : Toronto Code Camp 2010 : Barry GervinBarry Gervin
XAML getting you down? Tired of the repetition of trial by error WPF or Silverlight development? If you’re not using Expression Blend to build your XAML, you’re doing it all wrong. Let’s take a look at the common pitfalls that new Silverlight developers fall into that make their code unblendable, and then leverage the patterns and techniques that allow us to unlock the virtues of Expression Blend. Testability, blendability, inner peace and maintainability are just 1 hour away
AngularJs Mini-Challenges is a growing collection of “Challenges” about the most quirky parts of the AngularJs framework. It encourage you to find and fix common mistakes and subtle bugs, as well as performance issues and bad practices, that non-expert AngularJs programmers may encounter on their endeavours into the depths of the framework.
AngularJs Mini-Challenges does not aim to teach you AngularJs. Former knowledge of the Framework is strongly recommended in order to understand the topics covered in this Challenges.
The document discusses Knockout, a JavaScript library for building dynamic user interfaces. It provides an overview of Knockout's core concepts including declarative bindings, dependency tracking, and templates. It also describes common patterns for using Knockout such as MVVM and building views, view models, and models. Key bindings and functionality are defined including observables, computed observables, and observable arrays.
This document provides an introduction and overview of AngularJS including its main concepts such as MVC, dependency injection, directives, filters, data binding, routing and REST services. It also discusses Angular scaffolding tools like Yeoman and provides examples of building an Angular application including fetching data from REST APIs and implementing routing. The document contains an agenda with topics and code snippets for controllers, views, directives and services. It also includes exercises for practicing key AngularJS concepts like data binding, routing and consuming REST services.
Java Server Faces (JSF) is a Java web development framework that provides reusable UI components and a component-based MVC architecture. Key aspects of JSF include:
- Clean separation of behavior and presentation using a component-based MVC model.
- Standard UI components and events tied to server-side code.
- Typical JSF applications include JavaBeans for state/behavior, event-driven development, and JSP view pages that reference a component tree.
The example JSF calculator application demonstrates:
1) Configuring the Faces servlet and managed beans.
2) Developing a model class and controller to mediate between the view and model.
3) Creating
This document provides a summary of the major new features in JavaServer Faces (JSF) 2.0, including Facelets as the preferred view declaration language, composite components, Ajax support, partial state saving, view parameters, system events, resources, behaviors, view traversal, annotations, navigation, exceptions, validation, EL improvements, and new scopes. It highlights contributions from the JSF expert group and community and provides resources for learning more about JSF 2.0.
This document provides an overview of AngularJS, including its philosophy and architecture. AngularJS aims to simplify development by providing model-view-controller frameworks and dependency injection. It advocates for declarative code for building user interfaces rather than imperative code. The document also discusses AngularJS concepts like templates, scopes, models, repeaters, filters and custom directives to build single page applications.
Design Patterns in ZK: Java MVVM as Model-View-BinderSimon Massey
This document discusses different patterns for separating the view, model, and controller/presenter layers in a ZK application. It describes the MVP, MVC, and MVVM/MVB patterns and compares their approaches. It provides best practices for implementing each layer, such as avoiding business logic in the view and using databinding to sync the view and model. The document emphasizes that the view model pattern focuses on separating application state and behavior from the view using databinding annotations.
Single-page applications (SPAs) take user interaction with web applications to a new level. This means that more logic will be moved to the web browser and we have to become more familiar with JavaScript. AngularJS is one of the leading JavaScript frameworks when talking about SPAs. In this workshop I will present AngularJS in terms of problems it addresses and how it does this. Together we will develop a single-page application and we will go through how traditional concepts of web applications (data and state management, authentication) can be solved using the framework. Furthermore, we will dive into typical pitfalls when developing applications using AngularJS and will see how we can avoid them.
The document discusses ASP.NET MVC framework concepts including:
- MVC architecture divides applications into models, views, and controllers. Models manage state, views display UI, and controllers handle user input and choose views.
- Advantages of MVC include clean separation of concerns, testable UI, reuse of views/models, and organized code.
- The Razor view engine renders HTML from dynamic server-side code using a specially designed parser.
- ASP.NET MVC classes are in the System.Web.Mvc namespace which contains controllers, views, and other core classes.
Just a View: An Introduction To Model-View-Controller PatternAaron Nordyke
This document discusses model-view-controller (MVC), including its separation of concerns and observer pattern. It highlights templating libraries and MVC frameworks as useful tools. MVC separates an application into three components - the model, the view, and the controller - with the observer pattern coordinating changes between them. Templating libraries and MVC frameworks make implementing MVC easier by handling concerns like updating views on model changes and separating programming logic from user interface markup.
The document discusses how to prevent JavaScript injection attacks in ASP.NET MVC applications. It describes a customer feedback website that is vulnerable to JavaScript injection by displaying user-submitted content without encoding. It then presents two approaches to prevent this: 1) HTML encoding user data when displayed in views, and 2) HTML encoding user data before saving to the database in controllers. Encoding replaces dangerous HTML characters to neutralize malicious JavaScript while preserving the data's meaning.
Visual Studio 2010 Ultimate Architecture Experience : Toronto Code Camp 2010 ...Barry Gervin
This document discusses how Visual Studio 2010 helps developers and architects manage complexity. It outlines features that help understand existing code through tools like the Architecture Explorer and sequence diagram generation. It also describes how VS 2010 supports modeling the domain using UML diagrams. Additionally, it discusses how layer diagrams and work item integration can help maintain control and enforce architectural decisions.
This document provides an overview of key concepts in AngularJS including two-way data binding, directives, modules, controllers, expressions, validation, filters, services, dependency injection, and custom directives and services. It explains how AngularJS uses directives, modules, and controllers to organize code. It also covers core functions like data binding, validation, filters, and dependency injection via the injector.
The document discusses the MVC architecture pattern and how it is commonly implemented using Java technologies like Servlets, JSPs, and frameworks like Struts. It describes the core components of MVC - the Model, View, and Controller layers. The Model contains the business logic and data access code. The View is responsible for presentation and user interface. The Controller accepts user input and interfaces with the Model to handle requests. Frameworks like Struts provide libraries and utilities to simplify building applications using the MVC pattern.
The document discusses application-managed entity managers in Java applications. Application-managed entity managers allow Java applications like Swing programs to use JPA for persistence without requiring an EJB container. These applications manage the entity manager lifecycle directly and typically use resource-local transactions instead of JTA transactions. The document provides an example Java application that creates an entity manager factory, performs transactions to add and retrieve an entity, and closes resources.
Top 10 qhse interview questions and answersNickiMinaj789
This document provides a list of useful materials for QSHE interviews, including types of common interview questions, examples of situational and behavioral interviews, and tips for preparing for and answering different types of questions. It lists over 50 links to resources on topinterviewquestions.info that cover topics such as the most frequent interview questions, how to prepare for an interview, dressing appropriately, following up after an interview, and more. The extensive list of additional resources indicates this is a comprehensive guide to preparing for a QSHE interview.
Entity Framework, Code First, Database First, TPH, TPT, TPC. Table Per Type, Table Per Hierarchy, Table Per Concrete Class, EF Concurrency, EF Relationship, Code First Conventions
Top 10 pharmacy interview questions and answersNickiMinaj789
This document provides a summary of useful materials for pharmacy job interviews, including common interview questions, tips for answering questions, and sample follow-up letters. It lists over 50 links to resources on a website that contain free ebooks, articles, and guides on interview preparation, question types, sample answers for questions like "what are your strengths?", and more. The document aims to equip job applicants in the pharmacy field with extensive information to feel prepared for interviews.
Top 10 photography interview questions and answersNickiMinaj789
This document provides resources for photography interview preparation, including common interview questions, tips, and examples. It lists top interview questions and answers in various categories like situational, behavioral, phone, and competency-based interviews. Other useful materials include dress code guidance, written test examples, case studies, follow-up email templates, and more. The extensive list of links directs to additional in-depth resources on the topinterviewquestions.info domain.
Top 10 nursing interview questions and answersOneDirection345
This document provides resources for nursing interview preparation, including common interview questions, tips, and examples. It lists top nursing interview questions and answers on experience, challenges, work weeks, weaknesses, reasons for hiring, salaries, and questions to ask. Useful materials are also listed on situational, behavioral, phone, competency-based, and technical interview questions as well as thank you letters, applications, practices, and more. The extensive list aims to help applicants prepare for and succeed in nursing job interviews.
Top 10 pharmaceutical interview questions and answersNickiMinaj789
This document provides a list of resources for pharmaceutical interview preparation and questions. It includes links to articles on common interview questions, different types of interviews, tips for answering questions, dress codes, thank you letters and more. The resources cover situational, behavioral, management, phone, competency-based and other interview styles as well as case studies, scenarios and exam samples to help candidates prepare for pharmaceutical interviews.
Spring MVC is the web component of the Spring framework. It follows the MVC pattern with controllers handling requests and generating models for views to display. Spring MVC supports annotations for mapping requests to controller methods and binding request parameters to Java objects. It provides validation, internationalization, and AJAX support through integration with other libraries. Common view technologies like JSP are supported through tags that integrate with Spring MVC.
Knockout.js is a JavaScript library that makes it easier to create dynamic and responsive user interfaces by binding a data model to HTML elements, automatically updating the UI when the data model changes. It provides declarative bindings, dependency tracking, templating, and other features to simplify building dynamic UIs using the MVVM pattern. Knockout.js works with any web framework, has no dependencies, and supports all major browsers.
This document provides an overview of ASP.NET MVC including its history, the MVC pattern, controllers, views, routing, and Razor views. It discusses the Model-View-Controller components, controller actions, action results, and action filters. It also covers view helpers, layouts, sections, and Razor syntax features.
Building Modern Websites with ASP.NET by Rachel Appel.NET Conf UY
This document provides an overview of building modern websites with ASP.NET MVC, including discussions of models, controllers, views, routing, Entity Framework, and view models. It describes models as the application's data expressed as classes, controllers as handling requests and routing, and views as the UI layer that renders models. It also covers Entity Framework for database mapping, RESTful routing, and using view models to promote separation of concerns.
This document discusses several key concepts in ASP.NET MVC including areas, HTML helpers, partial views, dependency injection, model validation, and asynchronous controller actions. It provides code examples for creating an area, partial view, unit tests, and using model attributes for validation. The document is intended to be part of an ASP.NET MVC training and covers important topics like routing, generating HTML, reusing views, testing, and asynchronous programming.
This document provides an overview of Asp.Net MVC and how it compares to traditional Asp.Net web forms. Some key points:
- Asp.Net MVC follows the MVC pattern, separating concerns into models, views, and controllers, allowing for cleaner code and easier testing compared to Asp.Net web forms.
- In Asp.Net MVC, controllers handle requests and return action results, views are responsible for the UI, and models represent application data. This separation of concerns is more aligned with HTTP concepts.
- Asp.Net MVC aims to be more flexible, maintainable, and testable than web forms. It allows for tighter control over HTML and adheres to conventions over configurations
Java servlets are small programs that run on a web server and dynamically generate web page content. They extend the functionality of web servers and allow for more complex interactions than CGI programs. Servlets support multithreading and sharing of resources, making them faster than CGI programs which require creating a new process for each request. Common ways to handle form data submitted to servlets include using the getParameter() method to retrieve parameter values by name. Sessions can be tracked across requests using cookies, which are small pieces of data stored in the user's browser by the web server. There are two main architectures for developing JSP applications - page-centric and servlet-centric, with servlet-centric following the MVC pattern and separating business
Spring 3 emphasizes annotation configuration over XML. Key changes include support for JSR 250, 299/330, and 303 annotations as well as a simplified MVC framework with @Controller and @RequestMapping annotations. Validation is integrated using JSR 303 annotations and executed automatically by the framework. Configuration is also simplified through @Configuration classes and the @Bean annotation.
Angular - Chapter 4 - Data and Event HandlingWebStackAcademy
The document provides information about Angular data binding and event handling. It discusses how interpolation can be used to connect data from a component class to its template. It also explains how property binding and event binding allow two-way communication between the component class and template. Finally, it introduces ngModel for setting up two-way data binding between an input element and a property.
This document discusses MVVM and data binding in Android development. It begins with an overview of MVVM theory and the roles of the model, view, and view model. It then covers Android's data binding library for linking UI components to data sources, including features like variable binding, listeners, and view model composition. The document also provides examples of using data binding with RecyclerView and accessing view values directly. It concludes with some links for further reading on MVVM patterns.
1) The document discusses how to build modular web applications using the JavaScript frameworks Backbone.js and RequireJS. It advocates separating an application into reusable components using the Model-View-Controller (MVC) pattern and composing the interface from independent views.
2) RequireJS allows code to be split into bite-sized modules and defines dependencies between modules. This supports large-scale application development and avoids dependency issues.
3) The document provides an example of a fictitious stock trading application called Bullsfirst that demonstrates these techniques and emphasizes the importance of architecture for engaging web applications.
An assembly in .NET is a collection of types and resources that form a logical unit. Assemblies can contain metadata about types using attributes. Attributes provide additional information that can be attached to classes, methods, and other members. There are built-in attributes in .NET and custom attributes can be created by deriving from the Attribute base class. Built-in attributes like Required and StringLength are used to validate model data in ASP.NET MVC. A custom MyLicenseAttribute was created to require a license key by applying the attribute to assemblies. Attributes help add metadata and customize behavior.
The document discusses several Java design patterns:
1. Model-View-Controller (MVC) which separates an application into three main components - the model, the view, and the controller.
2. Business Delegate which acts as an intermediary between clients and business services to simplify relationships and reduce coupling.
3. Composite Entity which manages interactions between coarse-grained and dependent objects internally using a coarse-grained interface.
It also provides examples and descriptions of other patterns like Data Access Object, Front Controller, Intercepting Filter, Service Locator, and Transfer Object.
TechDays 2013 Jari Kallonen: What's New WebForms 4.5Tieturi Oy
This document summarizes new features in ASP.NET WebForms 4.5, including strongly typed data controls, model binding, unobtrusive validation, HTML5 support, and asynchronous programming support. It provides code examples of using data binding, model binding with value providers, validation with data annotations and validation controls, and asynchronous code with the async and await keywords. The document demonstrates these new ASP.NET features.
The document introduces ASP.NET MVC, which is a framework from Microsoft that builds on the standard ASP.NET engine. It follows the model-view-controller (MVC) pattern to separate application behavior, user interface, and data access. The goals of ASP.NET MVC include testability, friendly URLs, leveraging existing ASP.NET features, and full control of HTML. It also discusses how ASP.NET MVC works, including routing, controllers, actions, and views. Demos are provided for basic routing and controllers as well as models, HTML helpers, forms, and validation.
AngularJS is an MVW JavaScript framework. It uses Model-View-Whatever architecture, with the "Whatever" standing for whatever works for the developer. Core concepts include templates, directives, scopes, expressions, filters, controllers and services. AngularJS enables two-way data binding between models and views. It also supports dependency injection to decouple code. Directives can be used to create reusable components in AngularJS applications.
1. The document discusses a webcast on using the Windows Presentation Foundation (WPF) and the Model-View-ViewModel (MVVM) architecture.
2. Key WPF features covered include resolution independence, graphics/animation, control templates, dependency properties, data binding, data templates, and triggers.
3. The MVVM pattern separates applications into three layers - the view layer for UI, view model layer for data presentation, and model layer for data access. This creates a loosely coupled and modular design.
This document provides an introduction to ASP.NET MVC, covering the MVC pattern, controllers, actions, routing, views, models, and capturing user input with forms. It discusses key ASP.NET MVC concepts like separation of concerns, the default project structure, and common action filters. The document also provides exercises for readers to create a basic MVC application with a model, controller actions, and views that display and capture data. It concludes by outlining additional topics to be covered in part 2, such as HTML helpers, partial views, and unit testing.
The document provides an overview of ASP.NET MVC, including its core components and how they differ from ASP.NET Web Forms. It discusses Models, Views, Controllers, validation, routing, unit testing, and view engines. Key points covered include MVC separating application logic, control over HTML, testability, and no viewstate or postbacks. Examples are provided for creating controllers and actions, passing data to views, validation, routing, and unit testing.
What is Augmented Reality Image Trackingpavan998932
Augmented Reality (AR) Image Tracking is a technology that enables AR applications to recognize and track images in the real world, overlaying digital content onto them. This enhances the user's interaction with their environment by providing additional information and interactive elements directly tied to physical images.
SMS API Integration in Saudi Arabia| Best SMS API ServiceYara Milbes
Discover the benefits and implementation of SMS API integration in the UAE and Middle East. This comprehensive guide covers the importance of SMS messaging APIs, the advantages of bulk SMS APIs, and real-world case studies. Learn how CEQUENS, a leader in communication solutions, can help your business enhance customer engagement and streamline operations with innovative CPaaS, reliable SMS APIs, and omnichannel solutions, including WhatsApp Business. Perfect for businesses seeking to optimize their communication strategies in the digital age.
Do you want Software for your Business? Visit Deuglo
Deuglo has top Software Developers in India. They are experts in software development and help design and create custom Software solutions.
Deuglo follows seven steps methods for delivering their services to their customers. They called it the Software development life cycle process (SDLC).
Requirement — Collecting the Requirements is the first Phase in the SSLC process.
Feasibility Study — after completing the requirement process they move to the design phase.
Design — in this phase, they start designing the software.
Coding — when designing is completed, the developers start coding for the software.
Testing — in this phase when the coding of the software is done the testing team will start testing.
Installation — after completion of testing, the application opens to the live server and launches!
Maintenance — after completing the software development, customers start using the software.
Zoom is a comprehensive platform designed to connect individuals and teams efficiently. With its user-friendly interface and powerful features, Zoom has become a go-to solution for virtual communication and collaboration. It offers a range of tools, including virtual meetings, team chat, VoIP phone systems, online whiteboards, and AI companions, to streamline workflows and enhance productivity.
8 Best Automated Android App Testing Tool and Framework in 2024.pdfkalichargn70th171
Regarding mobile operating systems, two major players dominate our thoughts: Android and iPhone. With Android leading the market, software development companies are focused on delivering apps compatible with this OS. Ensuring an app's functionality across various Android devices, OS versions, and hardware specifications is critical, making Android app testing essential.
Odoo ERP software
Odoo ERP software, a leading open-source software for Enterprise Resource Planning (ERP) and business management, has recently launched its latest version, Odoo 17 Community Edition. This update introduces a range of new features and enhancements designed to streamline business operations and support growth.
The Odoo Community serves as a cost-free edition within the Odoo suite of ERP systems. Tailored to accommodate the standard needs of business operations, it provides a robust platform suitable for organisations of different sizes and business sectors. Within the Odoo Community Edition, users can access a variety of essential features and services essential for managing day-to-day tasks efficiently.
This blog presents a detailed overview of the features available within the Odoo 17 Community edition, and the differences between Odoo 17 community and enterprise editions, aiming to equip you with the necessary information to make an informed decision about its suitability for your business.
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI AppGoogle
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App
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https://sumonreview.com/ai-fusion-buddy-review
AI Fusion Buddy Review: Key Features
✅Create Stunning AI App Suite Fully Powered By Google's Latest AI technology, Gemini
✅Use Gemini to Build high-converting Converting Sales Video Scripts, ad copies, Trending Articles, blogs, etc.100% unique!
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✅Fully automated AI articles bulk generation!
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See My Other Reviews Article:
(1) AI Genie Review: https://sumonreview.com/ai-genie-review
(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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Measures in SQL (SIGMOD 2024, Santiago, Chile)Julian Hyde
SQL has attained widespread adoption, but Business Intelligence tools still use their own higher level languages based upon a multidimensional paradigm. Composable calculations are what is missing from SQL, and we propose a new kind of column, called a measure, that attaches a calculation to a table. Like regular tables, tables with measures are composable and closed when used in queries.
SQL-with-measures has the power, conciseness and reusability of multidimensional languages but retains SQL semantics. Measure invocations can be expanded in place to simple, clear SQL.
To define the evaluation semantics for measures, we introduce context-sensitive expressions (a way to evaluate multidimensional expressions that is consistent with existing SQL semantics), a concept called evaluation context, and several operations for setting and modifying the evaluation context.
A talk at SIGMOD, June 9–15, 2024, Santiago, Chile
Authors: Julian Hyde (Google) and John Fremlin (Google)
https://doi.org/10.1145/3626246.3653374
What is Master Data Management by PiLog Groupaymanquadri279
PiLog Group's Master Data Record Manager (MDRM) is a sophisticated enterprise solution designed to ensure data accuracy, consistency, and governance across various business functions. MDRM integrates advanced data management technologies to cleanse, classify, and standardize master data, thereby enhancing data quality and operational efficiency.
DDS Security Version 1.2 was adopted in 2024. This revision strengthens support for long runnings systems adding new cryptographic algorithms, certificate revocation, and hardness against DoS attacks.
Introducing Crescat - Event Management Software for Venues, Festivals and Eve...Crescat
Crescat is industry-trusted event management software, built by event professionals for event professionals. Founded in 2017, we have three key products tailored for the live event industry.
Crescat Event for concert promoters and event agencies. Crescat Venue for music venues, conference centers, wedding venues, concert halls and more. And Crescat Festival for festivals, conferences and complex events.
With a wide range of popular features such as event scheduling, shift management, volunteer and crew coordination, artist booking and much more, Crescat is designed for customisation and ease-of-use.
Over 125,000 events have been planned in Crescat and with hundreds of customers of all shapes and sizes, from boutique event agencies through to international concert promoters, Crescat is rigged for success. What's more, we highly value feedback from our users and we are constantly improving our software with updates, new features and improvements.
If you plan events, run a venue or produce festivals and you're looking for ways to make your life easier, then we have a solution for you. Try our software for free or schedule a no-obligation demo with one of our product specialists today at crescat.io
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
E-Invoicing Implementation: A Step-by-Step Guide for Saudi Arabian CompaniesQuickdice ERP
Explore the seamless transition to e-invoicing with this comprehensive guide tailored for Saudi Arabian businesses. Navigate the process effortlessly with step-by-step instructions designed to streamline implementation and enhance efficiency.
UI5con 2024 - Boost Your Development Experience with UI5 Tooling ExtensionsPeter Muessig
The UI5 tooling is the development and build tooling of UI5. It is built in a modular and extensible way so that it can be easily extended by your needs. This session will showcase various tooling extensions which can boost your development experience by far so that you can really work offline, transpile your code in your project to use even newer versions of EcmaScript (than 2022 which is supported right now by the UI5 tooling), consume any npm package of your choice in your project, using different kind of proxies, and even stitching UI5 projects during development together to mimic your target environment.
OpenMetadata Community Meeting - 5th June 2024OpenMetadata
The OpenMetadata Community Meeting was held on June 5th, 2024. In this meeting, we discussed about the data quality capabilities that are integrated with the Incident Manager, providing a complete solution to handle your data observability needs. Watch the end-to-end demo of the data quality features.
* How to run your own data quality framework
* What is the performance impact of running data quality frameworks
* How to run the test cases in your own ETL pipelines
* How the Incident Manager is integrated
* Get notified with alerts when test cases fail
Watch the meeting recording here - https://www.youtube.com/watch?v=UbNOje0kf6E
Need for Speed: Removing speed bumps from your Symfony projects ⚡️Łukasz Chruściel
No one wants their application to drag like a car stuck in the slow lane! Yet it’s all too common to encounter bumpy, pothole-filled solutions that slow the speed of any application. Symfony apps are not an exception.
In this talk, I will take you for a spin around the performance racetrack. We’ll explore common pitfalls - those hidden potholes on your application that can cause unexpected slowdowns. Learn how to spot these performance bumps early, and more importantly, how to navigate around them to keep your application running at top speed.
We will focus in particular on tuning your engine at the application level, making the right adjustments to ensure that your system responds like a well-oiled, high-performance race car.
2. Why MVC
Advantages:
Separation of Concerns
Easily Extensible
Testable [TDD is possible]
Lightweight [No ViewData]
Full Control on View Rendering [HTML]
Disadvantages:
More Learning Curve
More Complex
Rapid Prototype is not supported [Drag n Drop]
5. Models - Model Binder
Form
Default
Custom
Value Provider
Binding Collection/List and Dictionary
6. Models - Model Binder - FormCollection
It is collection of key/valu pair
Needs to map each value with property of model manually
Needs manual casting as well
7. Models - Model Binder - DefaultModelBinder
It is default model binder.
It plays an important role in conversion and mapping of model properties
8. Models - Model Binder - Custom ModelBinder
For complex scenario, application demands to build custom model binder to satisfy specific
requirement.
It is very helpful when UI developer doesn’t know about model.
9. Models - Model Binder - Value Providers
Model Binding is two step process:
1. Collecting values from requests using Value Providers
2. Populating models with those values using Model Binders
Below are the available value providers. Number indicates priority, and based on priority, Model
Binders looks into Value Providers to find specific value of a model property.
1. Form Fields [Request.Form]
2. JSON Request Body [Request.InputStream - only when request is an Ajax]
3. Routedata [RouteData.Values]
4. Query String Values [Request.QueryString]
5. Posted Files [Request.Files]
16. Models - DataAnnotations - Other
//Lists fields to exclude or include when binding parameter or form values to model properties
[Bind(Exclude=”{PropertyName}”)]
//Hides the input control
[HiddenInput(DisplayValue=false)]
//To display customized date format
[DisplayFormat(DataFormatString = "{0:dd/MM/yyyy hh:mm}")]
//If value is NULL, "Null Message" text will be displayed.
[DisplayFormat(NullDisplayText = "Null Message")]
//If you don’t want to display a column use ScaffoldColumn attribute.
//This only works when you use @Html.DisplayForModel() helper
[ScaffoldColumn(false)]
/*Specifies the template or user control that Dynamic Data uses to display a data field
If you annotate a property with UIHint attribute and use EditorFor or DisplayFor inside your views,
ASP.NET MVC framework will look for the specified template which you specified through UIHintAttribute.
The directories it looks for is:
For EditorFor: ~/Views/Shared/EditorTemplates, ~/Views/Controller_Name/EditorTemplates
For DisplayFor: ~/Views/Shared/DisplayTemplates, ~/Views/Controller_Name/DisplayTemplates
*/
[UIHint("StarRating")]
public int Rating { get; set; }
/*StarRating.cshtml*/
@model int
<img src="@Url.Content("~/Content/Images/star-" + Model.ToString("00") + ".png")" title="Rated @Model.ToString()/10" />
17. Models - DataAnnotations - Custom Annotations
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public sealed class NotEqualToAttribute : ValidationAttribute
{
private const string DefaultErrorMessage = "{0} cannot be the same as {1}.";
public string OtherProperty { get; private set; }
public NotEqualToAttribute(string otherProperty): base(DefaultErrorMessage)
{
if (string.IsNullOrEmpty(otherProperty))
{
throw new ArgumentNullException("otherProperty");
}
OtherProperty = otherProperty;
}
public override string FormatErrorMessage(string name)
{
return string.Format(ErrorMessageString, name, OtherProperty);
}
protected override ValidationResult IsValid(object value,ValidationContext validationContext)
{
if (value != null)
{
var otherProperty = validationContext.ObjectInstance.GetType().GetProperty(OtherProperty);
var otherPropertyValue = otherProperty.GetValue(validationContext.ObjectInstance, null);
if (value.Equals(otherPropertyValue))
{
return new ValidationResult(FormatErrorMessage(validationContext.DisplayName));
}
}
return ValidationResult.Success;
}
}
18. Models - DataAnnotations - Model State
[AllowAnonymous]
[HttpPost]
public JsonResult SignUp(RegisterModel model)
{
if (ModelState.IsValid)//Checks all data annotations based on their values
{
//TODO:
}
return Json(new
{
success = false,
errors = ModelState.Keys.SelectMany(k => ModelState[k].Errors)
.Select(m => m.ErrorMessage).ToArray()
});
}
19. Models - DataAnnotations - Model State - Extension
Model State can be easily extended with IValidatableObject interface. Custom validation logic can be written while implementing
interface method “Validate”.
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
if (Mobile != null && !Mobile.StartsWith("91"))
{
yield return new ValidationResult("India country code is required", new[] { "Mobile" });
}
}
The order of operations for the IValidatableObject to get called:
1. Property attributes
2. Class attributes
3. Validate interface
If any of the steps fail it will return immediately and not continue processing.
20. Model State can be modified before sending final result to view.
ModelState.Remove("Id"); // Removes validation error for this property if exists
ModelState.AddModelError("<Property>", "<Message>");
try
{
...
}
catch
{
ModelState.AddModelError("", "Throttling limit is reached.");
return;
}
Models - DataAnnotations - Model State - Advance
21. Views
Views - Layouts, Views, Partial Views
Passing Data into Views
Razor - HTML Helpers - Default, Custom; Sections; ViewEngine Customization
23. Views - Layout with ViewStart
Layout is master page
Layout can be configured for each view - using ViewStart.cshtml
Layout can be configured for view folder - creating ViewStart.cshtml in that folder
Layout can be configured in each view individually with setting Layout property
Nested Layout can be configured - Parent/Child or Header/Footer/LeftBar/RightBar
24. Views - View and Partial View
View is Razor template - HTML snippet. A view can’t have views
Partial View is also Razor template - HTML snippet - Reusable. A view can have partial views.
Rendering Partial Views:
1. Html.Partial - Returns string, can be manipulated later
2. Html.Action - Returns string, can be manipulated later, cacheable
3. Html.RenderPartial - Returns void, content will be written with parent view into stream directly,
gives better performance.
4. Html.RenderAction - Returns void, content will be written with parent view into stream directly,
gives better performance, cacheable.
25. Views - Passing Data into View
ViewData - Dictionary, needs casting, life: Action to View
ViewBag - dynamic, doesn’t need casting, ViewData wrapper, life: Action to View
Session - dictionary, needs casting, life: across application
TempData - dictionary, needs casting, Session wrapper, life: Action to any action
Model - Passing model in view argument - Strongly Typed View
30. Razor - Custom Html Helper
A method that returns IHtmlString (4.0) or MvcHtmlString (before 4.0)
1. Static Method that returns above return type
2. Extension method
3. @helper
31. Razor - Custom Html Helper
A method that returns IHtmlString (4.0) or MvcHtmlString (before 4.0)
1. Static Method that returns above return type
2. Extension method
3. @helper
34. Views - View Engine Customization
There are two ways:
1. Override existing view engines - Razor or WebForms
2. Create new engine with IViewEngine and IView
public interface IViewEngine
{
ViewEngineResult FindPartialView(ControllerContext controllerContext,
string partialViewName, bool useCache);
ViewEngineResult FindView(ControllerContext controllerContext,
string viewName,string masterName, bool useCache);
void ReleaseView(ControllerContext controllerContext, IView view);
}
public interface IView
{
void Render(ViewContext viewContext, TextWriter writer);
}
35. Security
There are two kind of securities that will be taken care while building views:
1. XSS
2. CSRF
36. Security - XSS
Injecting script that steals sensitive informations like cookies etc.
1. Someone hacked view rendering data - always render encoded html or use AntiXSS
1. System allows to enter scripts/html data - always render encoded html or use AntiXSS
Attributes that allows html content posting:
1. ValidateInput - allows html for any property
2. AllowHtml - allows html for specific property
44. Routing - When is is not applicable
> Existence of Physical File that Matches The URL/Route Pattern
How to handle those requests: routes.RouteExistingFiles = true;
> Restriction of Content like images, css and styles.
[ContentAuthorize]
public FileResult Index()
{
return File(Request.RawUrl, "image/jpeg");
}
> Securing Specific Folders
routes.IgnoreRoute("Content/{*relpath}");
> How to prevent routing from handling requests for the WebResource.axd file
routes.Ignore("{resource}.axd/{*pathInfo}");
48. Filters - What
How to modify default processing execution of Request/Response lifecycle?
Example:
public ActionResult Index()
{
if(!IsAuthorized())
{
//Stop processing and return error
}
return View();
}
MSDN says:
“
Sometimes you want to perform logic either before an action method is called or after an action method runs.
To support this, ASP.NET MVC provides filters.
Filters are custom classes that provide both a declarative and programmatic means to add pre-action and post-action
behavior to controller action methods. “
Filters are just Attributes.
49. Filters - Attributes
Attributes are meta data that contains custom logic that will be executed at given points.
Custom Attributes
public class HelpAttribute : Attribute
{
public HelpAttribute()
{
}
public String Description{get;set;}
}
[Help(Description = "This is user class contains all information about users and their business flow")]
public class User
{
[Help(Description = "This value is used in Authenticate() method.")]
public string UserName {get;set;}
[Help(Description = "This value is used in Authenticate() method.")]
public string Password {get;set;}
[Help(Description = "This method requires UserName and Password field. So please set those fields before calling this
method.")]
public bool Authenticate()
{
return true;
}
}
50. Filters - Attributes
public class HelpDocument<T>
{
private void Print(Attribute attr)
{
var ha = attr as HelpAttribute;
if (ha != null)
{
Console.WriteLine(ha.Description);
}
}
public void Build(T bo)
{
//Querying Class Attributes
foreach (Attribute attr in type.GetCustomAttributes(true))
{
Print(attr);
}
//Querying Class-Method Attributes
foreach(MethodInfo method in type.GetMethods())
{
Print(attr);
}
//Querying Class-Field (only public) Attributes
foreach(FieldInfo field in type.GetFields())
{
Print(attr);
}
}
}
51. Filters - Attributes
public class HelpDocument<T>
{
private void Print(Attribute attr)
{
var ha = attr as HelpAttribute;
if (ha != null)
{
Console.WriteLine(ha.Description);
}
}
public void Build(T bo)
{
//Querying Class Attributes
foreach (Attribute attr in type.GetCustomAttributes(true))
{
Print(attr);
}
//Querying Class-Method Attributes
foreach(MethodInfo method in type.GetMethods())
{
Print(attr);
}
//Querying Class-Field (only public) Attributes
foreach(FieldInfo field in type.GetFields())
{
Print(attr);
}
}
}
52. Filters - Types
Types of Filters [http://snag.gy/DsYnt.jpg]
1. Authentication (IAuthenticationFilter, AuthenticationAttribute) - Runs first, before any other filters or the action method
2. Authorization (IAuthorizationFilter, AuthorizeAttribute) - Runs first, before any other filters or the action method
3. Action (IActionFilter, ActionFilterAttribute) - Runs before and after the action method
4. Result (IResultFilter, ActionFilterAttribute) - Runs before and after the action result is executed
5. Exception (IExceptionFilter, HandleErrorAttribute) - Runs only if another filter, the action method, or the action result
throws an exception
57. Filters - Extension - Action
public class LoggingFilterAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
filterContext.HttpContext.Trace.Write("(Logging Filter)Action Executing: " +
filterContext.ActionDescriptor.ActionName);
base.OnActionExecuting(filterContext);
}
public override void OnActionExecuted(ActionExecutedContext filterContext)
{
if (filterContext.Exception != null)
filterContext.HttpContext.Trace.Write("(Logging Filter)Exception thrown");
base.OnActionExecuted(filterContext);
}
}
58. Filters - Extension - Result
public class SqlCacheAttribute : FilterAttribute, IResultFilter, IActionFilter
{
private string _SqlContent = "";
private string _Key = "";
private string CacheKey(ControllerContext filterContext)
{
string key="";//TODO: Your Logic
return key;
}
private void CacheResult(ResultExecutingContext filterContext)
{
}
public void OnActionExecuting(ActionExecutingContext filterContext)
{
_Key = CreateKey(filterContext);
_SqlContent = GetCacheValue(key);
if (!string.IsNullOrWhiteSpace(_SqlContent))
{
filterContext.Result = new ContentResult();
}
}
public void OnActionExecuted(ActionExecutedContext filterContext)
{
if (!string.IsNullOrWhiteSpace(_SqlContent))
{
filterContext.HttpContext.Response.Write(_SqlContent);
return;
}
CacheResult(filterContext);
}
public void OnResultExecuting(ResultExecutingContext filterContext)
{
}
public void OnResultExecuted(ResultExecutedContext filterContext)
{
}
}
59. Filters - Extension - Exception
Limitations of HandleError
1. Not support to log the exceptions
2. Doesn't catch HTTP exceptions other than 500
3. Doesn't catch exceptions that are raised outside controllers
4. Returns error view even for exceptions raised in AJAX calls
public class HandleAjaxErrorAttribute : HandleErrorAttribute
{
public override void OnException(ExceptionContext filterContext)
{
// return json data
if (filterContext.HttpContext.Request.Headers["X-Requested-With"] == "XMLHttpRequest")
{
filterContext.Result = new JsonResult
{
JsonRequestBehavior = JsonRequestBehavior.AllowGet,
Data = new
{
error = true,
message = filterContext.Exception.Message
}
};
filterContext.ExceptionHandled = true;
filterContext.HttpContext.Response.Clear();
filterContext.HttpContext.Response.StatusCode = 500;
}
return;
}
}
60. Filters - Execution Cancellation
By setting the Result property to a non-null value, further execution will be cancelled.
Example:
OnActionExecuting1,OnActionExecuted1, OnResultExecuting1, OnResultExecuted1
OnActionExecuting2,OnActionExecuted2, OnResultExecuting2, OnResultExecuted2
OnActionExecuting3,OnActionExecuted3, OnResultExecuting3, OnResultExecuted3
OnActionExecuting2, filterContext.Result = new RedirectResult("~/Home/Index"); //non-null value
Cancelled => OnActionExecuted2, OnActionExecuting3, OnActionExecuted3
61. Filters - Registration
a. Global Filter - http://snag.gy/ZqdDe.jpg
b. Controller Filter - Class
c. Action Filter - Method