This document discusses ASP.NET server controls. It begins with an overview of client-server architectures on the internet and a comparison of ASP and ASP.NET. It then covers the ASP.NET architecture and the different types of ASP.NET server controls including basic web controls, list controls, data controls, rich controls and validation controls. Examples are provided of creating user controls and custom controls to add dynamic functionality and reusable components to ASP.NET applications.
Web controls are used to build the graphical user interface of ASP.NET applications. There are four main types of web controls: intrinsic controls, list controls, rich controls, and validation controls. Intrinsic controls correspond directly to basic HTML elements like text boxes and buttons. List controls handle repetitive elements like drop-down lists and checkboxes. Rich controls provide advanced functionality like calendars. Validation controls validate user input on the client-side before form submission.
The document provides an overview of ASP.NET compilation and configuration. It discusses how ASP.NET code is compiled into assemblies and MSIL. It also covers the benefits of compilation such as performance, security and stability. Additionally, it describes ASP.NET's compilation architecture including features like multiple language support, automatic compilation, and flexible deployment options. Finally, it discusses website configuration in ASP.NET and how it uses a hierarchical system of configuration.
This chapter introduces XHTML and covers:
- The transition from HTML to XHTML and XML syntax requirements
- The anatomy of a web page including head, body, and DTD sections
- Common inline and block-level tags for formatting text and elements
- Special characters and how to display them
- Creating hyperlinks within and between pages using absolute and relative linking
The document is a presentation on HTML5 that covers:
- What HTML5 is and why to use it
- New HTML5 structural elements, forms, multimedia elements, and JavaScript APIs
- Demonstrations of HTML5 features like Canvas, SVG, Geolocation, Web Workers, and Web Sockets
- How CSS3 enhances HTML5 with features like media queries, colors, animations and more
- Strategies for implementing HTML5 into websites while maintaining compatibility
Web forms are a vital part of ASP.NET applications and are used to create the web pages that clients request. Web forms allow developers to create web applications using a similar control-based interface as Windows applications. The ASP.NET page processing model includes initialization, validation, event handling, data binding, and cleanup stages. The page acts as a container for other server controls and includes elements like the page header.
HTML5 Tutorial For Beginners - Learning HTML 5 in simple and easy steps with examples covering 2D Canvas, Audio, Video, New Semantic Elements, Geolocation, Persistent Local Storage, Web Storage, Forms Elements,Application Cache,Inline SVG,Document
Web controls are used to build the graphical user interface of ASP.NET applications. There are four main types of web controls: intrinsic controls, list controls, rich controls, and validation controls. Intrinsic controls correspond directly to basic HTML elements like text boxes and buttons. List controls handle repetitive elements like drop-down lists and checkboxes. Rich controls provide advanced functionality like calendars. Validation controls validate user input on the client-side before form submission.
The document provides an overview of ASP.NET compilation and configuration. It discusses how ASP.NET code is compiled into assemblies and MSIL. It also covers the benefits of compilation such as performance, security and stability. Additionally, it describes ASP.NET's compilation architecture including features like multiple language support, automatic compilation, and flexible deployment options. Finally, it discusses website configuration in ASP.NET and how it uses a hierarchical system of configuration.
This chapter introduces XHTML and covers:
- The transition from HTML to XHTML and XML syntax requirements
- The anatomy of a web page including head, body, and DTD sections
- Common inline and block-level tags for formatting text and elements
- Special characters and how to display them
- Creating hyperlinks within and between pages using absolute and relative linking
The document is a presentation on HTML5 that covers:
- What HTML5 is and why to use it
- New HTML5 structural elements, forms, multimedia elements, and JavaScript APIs
- Demonstrations of HTML5 features like Canvas, SVG, Geolocation, Web Workers, and Web Sockets
- How CSS3 enhances HTML5 with features like media queries, colors, animations and more
- Strategies for implementing HTML5 into websites while maintaining compatibility
Web forms are a vital part of ASP.NET applications and are used to create the web pages that clients request. Web forms allow developers to create web applications using a similar control-based interface as Windows applications. The ASP.NET page processing model includes initialization, validation, event handling, data binding, and cleanup stages. The page acts as a container for other server controls and includes elements like the page header.
HTML5 Tutorial For Beginners - Learning HTML 5 in simple and easy steps with examples covering 2D Canvas, Audio, Video, New Semantic Elements, Geolocation, Persistent Local Storage, Web Storage, Forms Elements,Application Cache,Inline SVG,Document
HTML structures web documents and defines the semantics, or meaning, of content. CSS handles presentation and styling. HTML uses tags to define headings, paragraphs, lists, links and other content. CSS allows styling of elements using selectors, properties and values. External CSS files allow separation of concerns and reuse of styles across pages.
This document introduces JavaScript, explaining that it allows for interactivity on web pages by manipulating the browser and reacting to user actions. It is embedded in HTML and executes on the client side for fast interactions without a connection. JavaScript statements can include code combined with HTML tags. The document also discusses using JavaScript with HTML forms to process and display user input on the page.
This document discusses validating user input in ASP.NET applications. It describes using validation controls on both the client-side using JavaScript and server-side using C# to check fields for errors like empty values, values outside a specified range, or values that do not match a regular expression. The key validation controls covered are RequiredFieldValidator, RangeValidator, RegularExpressionValidator, CompareValidator, and CustomValidator. It emphasizes best practices of using both client-side and server-side validation for security and usability.
This document discusses ADO.NET, which is a data access technology that allows applications to connect to and manipulate data from various sources. It describes the core ADO.NET objects like Connection, Command, DataReader, DataAdapter, DataSet and DataTable. It also explains the differences between connected and disconnected data access models in ADO.NET, detailing the objects used in each approach and their advantages. Finally, it provides an overview of commonly used .NET data providers like SqlClient, OleDb and Odbc.
This document provides an introduction and overview of ASP.NET and Web Forms. It discusses the background of ASP and how ASP.NET was developed to address challenges with ASP. The key features of ASP.NET, including Web Forms, Web Services, and the .NET Framework are described. The document then covers the ASP.NET programming model based on controls and events, and how postbacks maintain page state without requiring additional code. It also introduces the ASP.NET object model and server-side controls.
The presentation provides an introduction to the Document Object Model (DOM) and how it allows JavaScript to access and modify HTML documents. It discusses how the DOM presents an HTML document as a tree structure, and how JavaScript can then restructure the document by adding, removing, or changing elements. It also gives examples of how DOM properties and methods allow accessing and manipulating specific nodes, such as changing the background color of the document body.
This document provides an overview of ASP.NET Web API, a framework for building RESTful web services. It discusses key REST concepts like URIs, HTTP verbs, and HATEOAS. It also compares Web API to other technologies like WCF and SOAP, noting advantages of REST such as simpler CRUD operations and standardized development methodology. The document recommends resources like a book on building REST services from start to finish with ASP.NET MVC 4 and Web API.
The document provides an agenda for a workshop on HTML, CSS, and putting them together. It covers HTML topics like semantic tags, comments, and best practices. It then discusses CSS topics such as IDs vs classes, floats, shorthand, and putting HTML and CSS together with project structure and layouts. The workshop aims to give an introduction to HTML, CSS, and how to structure websites using these languages.
This document provides an introduction to JavaScript and its uses for web programming. It explains that JavaScript is a client-side scripting language that allows web pages to become interactive. Some key points covered include:
- JavaScript can change HTML content, styles, validate data, and make calculations.
- Functions are blocks of code that perform tasks when invoked by events or called in code.
- Events like clicks or keyboard presses trigger JavaScript code.
- The DOM (Document Object Model) represents an HTML document that JavaScript can access and modify.
- Forms and user input can be accessed and processed using the DOM.
- Programming flow can be controlled with conditional and loop statements.
-
This document discusses AJAX (Asynchronous JavaScript and XML). It defines AJAX as a group of interrelated web development techniques used on the client-side to create interactive web applications. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server without reloading the entire page. The document outlines the technologies that power AJAX like HTML, CSS, XML, JavaScript, and XMLHttpRequest and how they work together to enable asynchronous updates on web pages.
Topics Covered
==============================
Overview of .NET
Overview of ASP.NET
Creating an ASP.NET Web Form
Adding Event Procedures
Validating User Input
The document discusses various aspects of using the GridView control in ASP.NET such as binding data to the GridView, handling paging, sorting and editing. It describes properties like AllowPaging and events like PageIndexChanging. It provides code examples for binding data, handling sorting and paging. The document also discusses different field types that can be used in a GridView like BoundField, TemplateField and HyperLinkField.
Cascading Style Sheets (CSS) is used to separate a document's semantics from its presentation. CSS allows content to be displayed differently on different devices. CSS rules consist of selectors and declarations blocks. The CSS box model represents elements as boxes that can be sized and positioned with properties like width, height, padding, borders, and margins. CSS handles conflicts between rules through specificity, source order, and inheritance to determine which styles get applied.
This PPT explains about the various ways to manage the state of an asp.net web application. This PPT is for complete beginners and intermediate developers who want to know few things about Asp.net State Management. Here I have explained in brief about the various techniques we use to manage the state of our application.
This document provides an overview of HTML and CSS topics including:
- A brief history of HTML and CSS standards from 1990 to present.
- Descriptions of common HTML elements like <body>, <head>, <img>, <a>, and lists.
- Explanations of CSS concepts like selectors, properties, units, positioning, and layout fundamentals.
- Details on CSS topics like the box model, centering content, semantic HTML, and flexbox.
The document serves as a course outline or reference for learning HTML and CSS fundamentals.
This document provides an introduction to ASP.NET, including an overview of .NET and its components. It discusses how ASP.NET allows the .NET framework to be exposed to the web using IIS. It also covers topics like scripting languages, Microsoft Visual Studio, creating ASP.NET pages, controls, events, variables, data types, operators, functions and arrays. The document is intended as the first day of an 11-week introduction to ASP.NET course.
HTML server controls allow standard HTML elements like headers, anchors, and inputs to be processed by the server by adding the "runat=server" attribute and an ID. This converts elements like <input> to server controls like <input id="testtext" runat="server">. HTML server controls are useful for static layout tables and converting existing HTML pages to ASP.NET. They correspond to common HTML tags and elements like headings, images, forms and tables.
The document discusses the Document Object Model (DOM), which defines the logical structure of objects in an HTML document and how they can be manipulated with JavaScript. The DOM represents an HTML document as nodes and objects that can be accessed and modified with JavaScript. All HTML elements, text, and attributes can be accessed through the DOM to be modified, deleted, or have new elements created. Events allow scripts to run in response to user actions on a page.
This chapter discusses ASP.NET data controls for working with multiple values from a data source. It covers the Repeater, DataList, FormView, DetailsView and GridView controls. These controls display data through binding and templates, allowing customization of layout and presentation. The DataList displays items in a list, Repeater provides full flexibility, DetailsView and FormView show a single record, and GridView displays in a table.
The document provides an overview of building web applications using ASP.NET and .NET Framework. It discusses the key features of ASP.NET like server controls, master pages, themes, data access, security etc. It also covers ASP.NET programming basics, different page models, folder structure and the ASP.NET execution model.
ASP.NET is a server-side web application framework designed to address limitations of ASP like being loosely typed, mixing code and content, and having limited debugging. ASP.NET uses compiled languages like VB.NET and C# and the .NET Framework. It separates HTML markup from code-behind files. Controls are used to generate dynamic content and view state preserves state across postbacks. Configuration is done via XML files.
HTML structures web documents and defines the semantics, or meaning, of content. CSS handles presentation and styling. HTML uses tags to define headings, paragraphs, lists, links and other content. CSS allows styling of elements using selectors, properties and values. External CSS files allow separation of concerns and reuse of styles across pages.
This document introduces JavaScript, explaining that it allows for interactivity on web pages by manipulating the browser and reacting to user actions. It is embedded in HTML and executes on the client side for fast interactions without a connection. JavaScript statements can include code combined with HTML tags. The document also discusses using JavaScript with HTML forms to process and display user input on the page.
This document discusses validating user input in ASP.NET applications. It describes using validation controls on both the client-side using JavaScript and server-side using C# to check fields for errors like empty values, values outside a specified range, or values that do not match a regular expression. The key validation controls covered are RequiredFieldValidator, RangeValidator, RegularExpressionValidator, CompareValidator, and CustomValidator. It emphasizes best practices of using both client-side and server-side validation for security and usability.
This document discusses ADO.NET, which is a data access technology that allows applications to connect to and manipulate data from various sources. It describes the core ADO.NET objects like Connection, Command, DataReader, DataAdapter, DataSet and DataTable. It also explains the differences between connected and disconnected data access models in ADO.NET, detailing the objects used in each approach and their advantages. Finally, it provides an overview of commonly used .NET data providers like SqlClient, OleDb and Odbc.
This document provides an introduction and overview of ASP.NET and Web Forms. It discusses the background of ASP and how ASP.NET was developed to address challenges with ASP. The key features of ASP.NET, including Web Forms, Web Services, and the .NET Framework are described. The document then covers the ASP.NET programming model based on controls and events, and how postbacks maintain page state without requiring additional code. It also introduces the ASP.NET object model and server-side controls.
The presentation provides an introduction to the Document Object Model (DOM) and how it allows JavaScript to access and modify HTML documents. It discusses how the DOM presents an HTML document as a tree structure, and how JavaScript can then restructure the document by adding, removing, or changing elements. It also gives examples of how DOM properties and methods allow accessing and manipulating specific nodes, such as changing the background color of the document body.
This document provides an overview of ASP.NET Web API, a framework for building RESTful web services. It discusses key REST concepts like URIs, HTTP verbs, and HATEOAS. It also compares Web API to other technologies like WCF and SOAP, noting advantages of REST such as simpler CRUD operations and standardized development methodology. The document recommends resources like a book on building REST services from start to finish with ASP.NET MVC 4 and Web API.
The document provides an agenda for a workshop on HTML, CSS, and putting them together. It covers HTML topics like semantic tags, comments, and best practices. It then discusses CSS topics such as IDs vs classes, floats, shorthand, and putting HTML and CSS together with project structure and layouts. The workshop aims to give an introduction to HTML, CSS, and how to structure websites using these languages.
This document provides an introduction to JavaScript and its uses for web programming. It explains that JavaScript is a client-side scripting language that allows web pages to become interactive. Some key points covered include:
- JavaScript can change HTML content, styles, validate data, and make calculations.
- Functions are blocks of code that perform tasks when invoked by events or called in code.
- Events like clicks or keyboard presses trigger JavaScript code.
- The DOM (Document Object Model) represents an HTML document that JavaScript can access and modify.
- Forms and user input can be accessed and processed using the DOM.
- Programming flow can be controlled with conditional and loop statements.
-
This document discusses AJAX (Asynchronous JavaScript and XML). It defines AJAX as a group of interrelated web development techniques used on the client-side to create interactive web applications. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server without reloading the entire page. The document outlines the technologies that power AJAX like HTML, CSS, XML, JavaScript, and XMLHttpRequest and how they work together to enable asynchronous updates on web pages.
Topics Covered
==============================
Overview of .NET
Overview of ASP.NET
Creating an ASP.NET Web Form
Adding Event Procedures
Validating User Input
The document discusses various aspects of using the GridView control in ASP.NET such as binding data to the GridView, handling paging, sorting and editing. It describes properties like AllowPaging and events like PageIndexChanging. It provides code examples for binding data, handling sorting and paging. The document also discusses different field types that can be used in a GridView like BoundField, TemplateField and HyperLinkField.
Cascading Style Sheets (CSS) is used to separate a document's semantics from its presentation. CSS allows content to be displayed differently on different devices. CSS rules consist of selectors and declarations blocks. The CSS box model represents elements as boxes that can be sized and positioned with properties like width, height, padding, borders, and margins. CSS handles conflicts between rules through specificity, source order, and inheritance to determine which styles get applied.
This PPT explains about the various ways to manage the state of an asp.net web application. This PPT is for complete beginners and intermediate developers who want to know few things about Asp.net State Management. Here I have explained in brief about the various techniques we use to manage the state of our application.
This document provides an overview of HTML and CSS topics including:
- A brief history of HTML and CSS standards from 1990 to present.
- Descriptions of common HTML elements like <body>, <head>, <img>, <a>, and lists.
- Explanations of CSS concepts like selectors, properties, units, positioning, and layout fundamentals.
- Details on CSS topics like the box model, centering content, semantic HTML, and flexbox.
The document serves as a course outline or reference for learning HTML and CSS fundamentals.
This document provides an introduction to ASP.NET, including an overview of .NET and its components. It discusses how ASP.NET allows the .NET framework to be exposed to the web using IIS. It also covers topics like scripting languages, Microsoft Visual Studio, creating ASP.NET pages, controls, events, variables, data types, operators, functions and arrays. The document is intended as the first day of an 11-week introduction to ASP.NET course.
HTML server controls allow standard HTML elements like headers, anchors, and inputs to be processed by the server by adding the "runat=server" attribute and an ID. This converts elements like <input> to server controls like <input id="testtext" runat="server">. HTML server controls are useful for static layout tables and converting existing HTML pages to ASP.NET. They correspond to common HTML tags and elements like headings, images, forms and tables.
The document discusses the Document Object Model (DOM), which defines the logical structure of objects in an HTML document and how they can be manipulated with JavaScript. The DOM represents an HTML document as nodes and objects that can be accessed and modified with JavaScript. All HTML elements, text, and attributes can be accessed through the DOM to be modified, deleted, or have new elements created. Events allow scripts to run in response to user actions on a page.
This chapter discusses ASP.NET data controls for working with multiple values from a data source. It covers the Repeater, DataList, FormView, DetailsView and GridView controls. These controls display data through binding and templates, allowing customization of layout and presentation. The DataList displays items in a list, Repeater provides full flexibility, DetailsView and FormView show a single record, and GridView displays in a table.
The document provides an overview of building web applications using ASP.NET and .NET Framework. It discusses the key features of ASP.NET like server controls, master pages, themes, data access, security etc. It also covers ASP.NET programming basics, different page models, folder structure and the ASP.NET execution model.
ASP.NET is a server-side web application framework designed to address limitations of ASP like being loosely typed, mixing code and content, and having limited debugging. ASP.NET uses compiled languages like VB.NET and C# and the .NET Framework. It separates HTML markup from code-behind files. Controls are used to generate dynamic content and view state preserves state across postbacks. Configuration is done via XML files.
The document discusses the evolution of web development from early standards like HTML and XML to modern frameworks like ASP.NET. It describes classic ASP as the precursor to ASP.NET, noting its limitations like lack of IDE support and interpreted code. The bulk of the document then outlines key features of ASP.NET like its compiled, object-oriented nature and integration with the .NET framework. It also discusses ASP.NET controls, code models, and the separation of markup and code in code-behind files.
This document provides an overview of ASP.NET AJAX with Visual Studio 2008, including:
1) Benefits of using ASP.NET AJAX such as asynchronous JavaScript calls that reduce page loads and improve the user experience.
2) Key concepts of ASP.NET AJAX including UpdatePanels, triggers, and client-side JavaScript libraries.
3) Differences between client-centric and server-centric programming models in ASP.NET AJAX.
The document discusses various topics related to ASP.NET including Visual Studio 2005, ASP.NET framework, page lifecycle, controls, validation, user controls, data binding, and common data types. It provides an overview of creating and working with ASP.NET web applications and pages in Visual Studio.
The document provides information about Satyam Software Solutions Pvt. Ltd., including that they develop embedded systems and provide cost-effective solutions for organizations. They are developing a flexible and manageable NANO OS for sensor networks and robotics. They also offer hardware development services like microprocessor board development and custom board development.
This document provides an introduction and overview of ASP.NET, including what ASP.NET is, how it differs from ASP, ASP.NET files and how ASP.NET works. It describes the ASP.NET lifecycle and architecture. It also discusses ASP.NET page structure, development models including web forms and MVC, and provides examples of ASP.NET code. Key features and potential drawbacks of ASP.NET are summarized.
The document provides an introduction to ASP.NET, including what ASP is, how ASP.NET builds on ASP, and the key benefits and components of ASP.NET. It discusses how ASP.NET web applications are executed via HTTP requests and responses, and how code is separated from presentation using code-behind files. It also summarizes the basic steps to create a simple ASP.NET application in Visual Studio.
New microsoft office power point presentationteach4uin
ASP.NET AJAX is a framework that allows building AJAX-enabled applications with ASP.NET. It provides client script libraries that incorporate JavaScript and DHTML technologies and integrate them with ASP.NET 2.0. The framework includes server components like server controls and client components in a Microsoft AJAX library. It supports creating rich user interfaces with partial page updates and reduced network traffic compared to full page reloads.
Overview of ASP.Net by software outsourcing company indiaJignesh Aakoliya
This presentation provides overview of ASP.NET for software development - by software outsourcing company India, iFour Technolab Pvt. Ltd. - http://www.ifourtechnolab.com
The complete ASP.NET (IIS) Tutorial with code example in power point slide showSubhas Malik
SP.NET is a server-side Web application framework designed for Web development to produce dynamic Web pages. It was developed by Microsoft to allow programmers to build dynamic web sites, web applications and web services. It was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR), allowing programmers to write ASP.NET code using any supported .NET language. The ASP.NET SOAP extension framework allows ASP.NET components to process SOAP messages.
The document provides an overview of Microsoft ASP.NET, describing what it is, its advantages, and how it works. Key points include: ASP.NET provides a programming model and infrastructure for developing web applications using .NET languages and services; it offers advantages like compiled pages, XML configuration, and server controls; applications can be built as web forms or web services; and the .NET Framework provides a large class library for ASP.NET applications to utilize.
Client side controls in ASP.net allow for client side scripts and source code to run on the browser to speed up page execution and provide responsive user interactions without posting back to the server. Client side scripts can be used to perform actions like data validation and interface with controls like buttons. ASP.NET pages generate client side source code, including HTML, hidden fields, and JavaScript to handle features like view state maintenance and other functions needed to run the page. Traditional and server HTML controls support common client side events for interactions like focusing, clicking, and changing.
Active server pages .net role discusses shifting from classic ASP to ASP.NET, which provides a framework with namespaces and can be developed using an IDE. ASP.NET uses web forms and pages, separating HTML from application logic. It discusses state management techniques like cookies and hidden fields to maintain state across HTTP requests. The key objectives of ASP.NET are to create web forms with server controls, separate code and content, display dynamic data through binding, and debug ASP.NET pages.
The document provides an introduction to ASP.NET, including what it is, how it differs from ASP, and its core components. ASP.NET is a server-side technology that uses programming languages like VB.NET to create dynamic web pages, while ASP used scripting languages. ASP.NET pages are compiled into assemblies containing intermediate language code that is executed by the Common Language Runtime on the server. This allows ASP.NET to create robust, secure, and high performing dynamic web applications.
This document provides an introduction to ASP.NET, including what it is, how it differs from ASP, and its key components. ASP.NET is a server-side technology that uses fully-fledged programming languages supported by .NET to create dynamic web pages, unlike ASP which used scripting languages. ASP.NET pages contain both a user interface defined in HTML/server controls and a code behind file that contains the programming logic. It leverages the .NET Framework and common language runtime.
The document introduces Microsoft's Codename "Atlas" framework for building rich interactive web experiences. It discusses how Atlas provides a client library, tools, and architecture to enable asynchronous and dynamic user interfaces. It also explains how while Atlas was designed for .NET developers, the client-side libraries can benefit PHP developers by allowing them to leverage asynchronous behaviors, UI components, and services without having to modify server-side PHP code.
Here are the steps to view an assembly:
1. Create a simple class in Visual Basic or C#:
```vb
Public Class MyClass
Public Function SayHello() As String
Return "Hello World"
End Function
End Class
```
2. Compile the class into an assembly (DLL file):
In Visual Studio, build the project. This will compile the code and create an assembly file.
3. View the assembly:
Use Ildasm.exe, the IL Disassembler. This is a tool that comes with the .NET Framework SDK.
Open a command prompt, navigate to the bin folder containing your assembly, and run:
```
ildasm
Here are the steps to view an assembly:
1. Create a simple class in Visual Basic or C#:
```vb
Public Class MyClass
Public Function HelloWorld() As String
Return "Hello World"
End Function
End Class
```
2. Compile the class into an assembly (DLL file):
```
vbcomp MyClass.vb /target:library
```
3. Use ildasm.exe (IL Disassembler) to view the assembly:
```
ildasm MyClass.dll
```
4. Ildasm will display the assembly contents like types, methods, and metadata. You can view the CIL (intermediate language) code.
This document provides an introduction to building ASP.NET applications. It discusses page development topics such as separation of code from content, server controls, validation, custom controls, and the page event life cycle. It also covers "baked in" application services like session state. Finally, it discusses the ASP.NET runtime and improved deployment capabilities.
Discover the benefits of outsourcing SEO to Indiadavidjhones387
"Discover the benefits of outsourcing SEO to India! From cost-effective services and expert professionals to round-the-clock work advantages, learn how your business can achieve digital success with Indian SEO solutions.
Gen Z and the marketplaces - let's translate their needsLaura Szabó
The product workshop focused on exploring the requirements of Generation Z in relation to marketplace dynamics. We delved into their specific needs, examined the specifics in their shopping preferences, and analyzed their preferred methods for accessing information and making purchases within a marketplace. Through the study of real-life cases , we tried to gain valuable insights into enhancing the marketplace experience for Generation Z.
The workshop was held on the DMA Conference in Vienna June 2024.
HijackLoader Evolution: Interactive Process HollowingDonato Onofri
CrowdStrike researchers have identified a HijackLoader (aka IDAT Loader) sample that employs sophisticated evasion techniques to enhance the complexity of the threat. HijackLoader, an increasingly popular tool among adversaries for deploying additional payloads and tooling, continues to evolve as its developers experiment and enhance its capabilities.
In their analysis of a recent HijackLoader sample, CrowdStrike researchers discovered new techniques designed to increase the defense evasion capabilities of the loader. The malware developer used a standard process hollowing technique coupled with an additional trigger that was activated by the parent process writing to a pipe. This new approach, called "Interactive Process Hollowing", has the potential to make defense evasion stealthier.
2. Agenda
Introduction about internet & client
server architecture.
Comparison between Asp.NET & ASP.
ASP.NET Architecture.
Asp. Net Server Controls.
Proc of using controls.
Example.
3. The Internet
The Internet is a vast interconnected
collection of computer networks of
many different types.
It is the dominant distributed system at
the current time.
World’s largest client/server
application.
4. Client/Server Architectures
Application is modeled as a set of
services that are provided by servers
and a set of clients that use these
services
Clients know the servers but the
servers do not need to know all the
clients
s1
s2 s3
s4
c1
c2 c3 c4
c5
c6
c7 c8
c9
c10
c11
c12
Client process
Server process
5. Microsoft and DS
ASP.NET Web services and .NET
Remoting are the generic ways to build
distributed applications.
6. “Classic” ASP
Successes
Simple procedural programming model
No compiling, just save
Support for multiple scripting languages
Mix HTML and code
8. ASP.NET
ASP.NET is a web application
framework developed and marketed by
Microsoft to allow programmers to
build dynamic web sites, web
applications and web services.
First released in January 2002 with
version 1.0 of the .NET Framework, and
is the successor to Microsoft's Active
Server Pages (ASP) technology.
9. ASP.NET part of .NET Framework
Base Class Library
Common Language Specification
Common Language Runtime
ADO.NET: Data and XML
VisualStudio.NET
ASP.NET: Web Services
and Web Forms
Windows
Forms
Visual Basic® C++ C# JScript® …
10. Elements of an ASP.NET
application three-tier architecture
HTML pages
.aspx
User controls
.ascx
Style sheets
.css
Code behind
for .aspx files
.aspx.cs
Code behind
for user
controls
.ascx.cs
Other classes
.cs
Database
classes
.cs
DatabaseDatabase
layer
Business Rules
Layer
Presentation
layer
11. How ASP.NET applications
work
When IIS receives an HTTP request for an ASP.NET
page, it forwards the request to ASP.NET. ASP.NET
then creates and executes a compiled page that
combines the page class with the compiled C# code.
When the compiled page is executed, an instance of
the ASP.NET page class is generated. Then,
ASP.NET the appropriate events, which are
processed braises y the event handlers in the page.
Finally, the page generates the HTML that’s passed
back to IIS.
The ASP.NET page is compiled only the first time
it’s requested. After that, the page is run directly
from the DLL file.
18. ASP.NET
Features .. cont
Simplified browser support
Simplified form validation
Code behind pages
More powerful data access
Simplified configuration
20. What Is A Server Control?
A server control is a .NET component
that is used to generate the user
interface of an ASP.NET Web
application.
Controls range in complexity and
power: button, text, drop down,
calendar, data grid, ad rotator,
validation
It is implemented as a managed class
deriving directly or indirectly from the
System.Web.UI.Control base class.
21. What Is A Server Control?
Speaking More Practically…
A Web user interface element
Renders into HTML, script or a different markup format
Allows customization of rendering
A Web user interface component
Exposes properties, events and methods and is
programmable
Provides higher level abstractions
Performs post-back processing
Handles differences between browsers
Consistent programming model
22. ASP.NET Server App
Raising A Server Event
Mapping a browser event to server event
Click!
Button1
Control
Control
Control
Button1.RaisePostBackEvent()
calls OnClick()
invokes event handler
Button1_Click()
Controls registered to receive
post-back event notification
IPostBackEventHandler
HTTP form post
23. ASP.NET Server Controls
Organized into logical families
• HTML controls
• Controls / properties map 1:1
with HTML
• Web controls
• Richer functionality
• More consistent object model
24. HTML Server Controls
HTML elements exposed to the server for
programming, with an object model mapping to the
element
Additional attribute runat=“server”
HTML controls map one-to-one to HTML elements
HTML server controls are primarily used when
migrating older ASP pages to ASP.NET.
26. Web Server Controls
ASP.NET Web server controls are
objects on ASP.NET Web pages that
run when the page is requested and
that render markup to a browser.
Many Web server controls resemble
familiar HTML elements, such as
buttons and text boxes.
Other controls encompass complex
behavior, such as a calendar controls,
and controls that manage data
connections.
27. Web Server Controls
Web server controls offer more functionality
than HTML controls.
Consistent object model
Richer functionality
E.g. AutoPostBack, additional methods
Label1.BackColor = Color.Red;
Table.BackColor = Color.Blue;
28. How Web controls appear ..
Web controls appear in HTML markup as
namespaced tags
Web controls have an asp: prefix
Defined in the System.Web.UI.WebControls
namespace
This namespace is automatically mapped to
the asp: prefix
<asp:button onclick="button1_click“ runat=server>
<asp:textbox onchanged="text1_changed“ runat=server>
31. Properties To Controls Display
Web Controls provide extensive
properties to control display and
format, e.g.
Font
BackColor, ForeColor
BorderColor, BorderStyle,
BorderWidth
Style, CssClass
Height, Width
Visible, Enabled
33. 2 Ways To Author
Server Controls
User Controls
Simple, declarative authoring model (.ascx file)
Scoped to a single application
Well suited to static content and layout
“Custom” or Compiled Controls
Code-based authoring model (.cs or .vb class file)
Easily shared across applications
Well suited to dynamic or programmatic
generation of content and layout
More complex, but also more capabilities
34. Web User Controls
What they are:
Similar in functionality to ASP include
files but much better.
Encapsulate HTML and code into smaller
functional units.
Built similar to web forms but hosted on a
page as an object.
Reusable within the web project that
hosts them.
35. Two part entry into the aspx page
Part 1: The declaration.
<%@ Register TagPrefix="uc1" TagName="PageHeader"
Src=“_PageHeader.ascx" %>
TagPrefix: This is like a namespace in case you want to include
other controls with the same name. Usually defaults to uc1.
TagName: Again its only significance is to help uniquely identify
the control on the page. Usually defaults to the name of the
class.
Src: Let’s the page know where it can find the ascx file that goes
with the control.
36. Two part entry into the aspx page
Part 2: The actual control tag.
<uc1:pageheader id="_PageHeader1" runat="server" />
TagName
TagPrefix
Required if manipulating on Server
Unique instance identifier
37. Create Custom Controls
Creating your own controls can
simultaneously improve the quality of
your Web applications, make you more
productive and improve your user
interfaces.
Next Slide will discuss create HTML5
video Player controls.
38. HTML video player
ASP.NET custom controls are more
flexible than user controls.
We can also share a custom control
among projects.
create our custom control in a web
custom control library that is compiled
separately from our web application.
we can add that library to any project
in order to use our custom control in
that project.
39. HTML video player
The controls attribute is for adding
play, pause and volume controls.
Autoplay, controls, height, loop,
preload, src, width, poster.
43. Adding Properties
VideoUrl: A string property which specifies the URL of
the video to play.
PosterUrl: A string property which specifies the address
of an image file to show while no video data is available.
AutoPlay: A boolean property to specify whether the
video should automatically start playing or not, when the
webpage is opened.
DisplayControlButtons: A boolean property that
specifies whether the player navigation buttons are displayed
or not.
Loop: A boolean property that specifies whether the video
will start over again or not, every time it is finished.
45. Creating the Render Contents
Method
The primary job of a server control is
to render some type of markup
language to the HTTP output stream,
which is returned to and displayed by
the client.
The overridden RenderContents
method is the primary location where
we tell the control what we want to
render to the client.
46. Creating the Render Contents
Method
protected override void RenderContents(HtmlTextWriter output) { }
RenderContents method has one method
parameter called output. This parameter is
an HtmlTextWriter object, which is what the
control uses to render HTML to the client.
The HtmlTextwriter class has a number of
methods you can use to render your HTML,
including AddAttribute and
RenderBeginTag.
53. Types of Web Controls
Types of Web Controls
Basic Web controls
List controls
Data Controls
Rich controls
Validation controls
54. Basic Web Controls
Are rendered to simple HTML elements, provides
additional server-side functionality for a developer.
Basic Web controls provide the same functionality as their
HTML server control counterparts. However, basic Web
control include additional methods, events, and properties
against which you can program.
Supported controls
<asp:button>
<asp:imagebutton>
<asp:linkbutton>
<asp:hyperlink>
<asp:textbox>
<asp:checkbox>
55. Basic Web Controls ..cont
Label
Change text with the help of code.
TextBox
Can be used to display a single-line text
box, password text box, and multi-line
text box by selecting its mode.
The modes are mutually exclusive.
<%@ ValidateRequest="False" %>
56. Basic Web Controls ..cont
Button
OnClickRaises the Click event.
Form is submitted to the server
Private void Button_Click( s As Object, e As
EventArgs )
OnCommandRaises the Command event.
The form is submitted with values of the
CommandName and CommandArgument properties.
Private void Buttom_Command( s As Object, e As
CommandEventArgs )
Image
With the help of image control we can create image
maps.
Link Button
Rendered as Hyperlink
57. Basic Web Controls ..cont
RadioButton
One radio button can be selected from a
group
CheckBox
Multiple checkboxes can be selected at a
time
58. Basic Web Controls ..cont
TextBox, ListControl, CheckBox
and their subclasses don’t
automatically do a postback when
their controls are changed
Specify AutoPostBack=true to make
change events cause a postback
59. List Controls
Controls that handle repetition
Supported controls
Repeater, DataList and DataGrid
controls expose templates for
customization
60. List Controls ..cont
DropDownList
Acts as radio button list
Covers less space
List Box
Acts as Checkbox list
Selection Mode enables multiple
selection in the list.
61. Rich Controls
provide a rich user interface for
particular tasks.
Custom controls with rich
functionality
Supported Controls
<asp:calendar>
<asp:adrotator>
More will be added
63. Data Controls
Data access in ASP.NET 2.0 can be
accomplished completely declaratively
(no code) using the new data-bound
and data source controls.
There are new data source controls to
represent different data backends such
as SQL database, business objects,
and XML.
There are new data-bound controls for
rendering common UI for data, such as
gridview, detailsview, and formview..
64. Data Controls
Data source controls - these controls
provides data binding to different data
sources
Data view controls - these are various
lists and tables, which can bind to data
from data sources for display
66. Validation Controls
Why Validate?
Usability
Frustrating for the user
Data Integrity
Ensure your getting data in the format you
expect
Security
Keeping your forms from being used against
you or your users
Assume all input is evil
67. Validation Controls …cont
Cross Site Scripting Attack
Cross-site scripting allows hackers to run
malicious script in a client’s Web browser
Any Web page that renders dynamic HTML
based on content that users submit is
vulnerable
That script can then be executed by the
browser of an unsuspecting user. The
browser has know way of knowing that the
script shouldn’t be executed.
68. Where to Validate?
Server Side
CGI, ASP, .Net, Coldfusion, etc.
Pros
Ensures that every time the form is submitted, the
validation will run.
Allows for validation against other server resources,
such as a backend database and business rules.
Cons
Puts more load on the server.
Slower
69. Where to Validate?
Client Side
JavaScript
Pros
Processing is done on the client computer
Faster
Cons
Will not work if the user has it disabled
Not a solution for security.
Not a good solution for data integrity.
70. When Server Side is also Client Side
Many server side controls will produce
JavaScript for validation when the page is
served.
Asp.net form field with validation
<form runat="server">
Email:<asp:textbox id="txtEmail" size="20" runat="server"/><br>
<ASP:RequiredFieldValidator ControlToValidate="txtEmail" Display="Static"
ErrorMessage="*Email is a required field."
runat="server"/>
Resulting form on Page
<form name="_ctl0" method="post" action="name_email1.aspx"
language="javascript" onsubmit="ValidatorOnSubmit();" id="_ctl0">
<script language="javascript" type="text/javascript"
src="/aspnet_client/system_web/1_0_3705_6018/WebUIValidation.js"></
script>
Server Side Validation : Page.IsValid “ Gets a value
indicating whether page validation succeeded”.
71. Validation Controls …cont
provide a way to reduce the number of
server round-trips by adding client side
validation code
<asp:RequiredFieldValidator>
Ensures that a value is entered
Display properties
Dynamic, static or none
Comparing to an Initial Value
Set InitialValue property
72. Validation Controls …cont
<asp:RegularExpressionValidator>
Tests if value matches a predefined pattern
Validating email (haidermujtaba@hotmail.com)
S+@S+.S+
Specifying length
S{0,10}
Digits
d{5}
73. Validation Controls …cont
<asp:CompareValidator>
Compares value against constant, another
control or data type
<asp:RangeValidator>
Checks if value is within minimum and
maximum values
<asp:ValidationSummary>
Displays list of validation errors in one place
<asp:CustomValidator>
Lets you create custom client- or server-side
validation function
74. Validation Controls …cont
Validation controls are derived from
System.Web.UI.WebControls.BaseValidato
r, which is derived from the Label
control
Validation controls contain text which
is displayed only if validation fails
Text property is displayed at control
location
ErrorMessage is displayed in
summary
75. Validation controls offer the following
advantages:
You can associate one or more validation
controls with each control that you want to
validate.
The validation is performed when the page
form is submitted.
You can specify programmatically whether
validation should occur, which is useful if
you want to provide a cancel button so that
the user can exit without having to fill valid
data in all of the fields.
The validation controls automatically detect
whether validation should be performed on
the client side or the server side.
78. Pros
All Web Controls follow a rich object
model that provides type-safe
programming capabilities.
Web Controls are able to raise a
greater variety of server-side events.
Some controls (DataGrid, repeater, etc)
have the ability to define your own look
for the control using templates.
Web Controls are extensible, meaning
that you can create your own Web
Controls
79. Pros
Developers don’t need any web
experience to write web apps.
Developers can focus on their
application -NOT on maintaining the
illusion of a state ful windows
application via web forms.
Maintainable, reusable code. That mix
of VBScript and HTML that worked OK
for simple jobs but was unmanageable
for serious jobs has gone.