ReSharper Presentation for NUGs
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ReSharper Presentation for NUGs

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ReSharper presentation that can be given by .Net user group leaders.

ReSharper presentation that can be given by .Net user group leaders.

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    ReSharper Presentation for NUGs ReSharper Presentation for NUGs Presentation Transcript

    • IntroducingThe most intelligent plug-in forVisual Studio 1
    • ReSharper in a NutshellCoding productivity tool for Visual Studio usersSupports C#, VB.NET, XML, XAML, ASP.NET, HTML/ CSS/JavaScript, build scriptsContinuous code quality analysis: error detection and quick-fixesNavigation, coding assistance, code generation, unit test integration… 2
    • Visual Studio with ReSharper 3
    • Syntax HighlightingR# extends VS highlighting: For fields, variables, constants, methods, operators, types, etc. In C# and VB.NET: 4
    • Code AnalysisR# provides on-the-fly code quality analysis.4 categories of analysis results: Errors Warnings Suggestions Hints 5
    • Code Inspections WikiSome suggestions are very technical, so ReSharper offers explanations: Clicking on the “Why is ReSharper Suggesting This” item opens up the corresponding page in the Code Inspection Wiki: 6
    • Marker Bar Marker Bar is a sidebar to the right-  Status Indicator shows the hand side of the text editor. overall status of the current file: MB represents all R# highlights in file (warnings, errors, suggestions,  It changes color if file contains to-do items and search results): errors or warnings: File contains compilation errors File has warnings but no errors File doesnt contain errors or warnings 7
    • Solution-Wide Analysis ReSharper can analyze your whole solution for errors To turn on, double-click the bottom left icon in Visual Studio: Circle is green if there are no errors, red otherwise Double-click the circle to see a list of issues 8
    • Find Code Issues ReSharper can locate all issues (errors  ReSharper can also help find issues and warnings) in the current project or similar to the one that has just been the whole solution encountered: To get a list of issues, use the menu item ReSharper | Inspect | Code Issues in Solution/Current Project ReSharper presents a tree of all issues  Similar issues can be searched at found, with various grouping options: different (including Custom) scopes: 9
    • Quick-Fixes Quick-fixes make you code free of errors and smells Available for most errors, warnings, and suggestions that R# displays Bulbs used to indicate availability Red bulb indicates an error Yellow bulb indicates a warning To display the list of available quick-fixes, press Alt+Enter: Hundreds of quick-fixes to perform multiple fixes 10
    • Context Actions Context actions are "mini-refactorings" intended for optional code transformations in a certain context. Examples:  Modifying the structure of conditional statements  Joining local variable declaration and assignment  Iterating collections with foreach statements Context actions are available for C#, VB.NET and XML Pencil icon to the left a code line means CAs are available 11
    • Code Completion R# complements native VS IntelliSense with 3 types of code completion:  Symbol Completion  Smart Completion  Import Symbol Completion Enhancements compared to Visual Studio include:  Immediate members are highlighted (vs inherited members)  All overloads displayed in a pop-up, you can scroll between them  Icons for parameters and local vars to distinguish them from fields  Completion list is narrowed down to match user input  CamelHumps: complete a long type name by typing “drfb" instead of "DecoderReplacementFallbackBuffer" 12
    • Symbol Completion Suggesting type-based variable names: Suggesting members of a class: Suggesting visible types: 13
    • Symbol Completion (cont.) Suggesting C# keywords: Symbol completion using CamelHumps: Completing names of symbols in build scripts: 14
    • Smart Completion Smart Code Completion (Ctrl+Alt+Space):  Filters the list of types, methods, and variables to match the expected type of an expression  If several return types are possible, detects the most recently used symbol of an applicable type and focuses it in the lookup list  Suggests creating anonymous delegates, lambda expressions, and regular methods, as well as local variables for out parameters  In object initializers, suggests fields/properties that were not yet assigned a value 15
    • Smart Completion (cont.) In object initializers: In lambda expressions: Creating a local variable in place of an out parameter: 16
    • Import Completion In C# for extension methods: In C# using CamelHumps: In ASP.NET: 17
    • Complete Statement Complete Statement (Ctrl+Shift+Enter):  Inserts necessary syntax elements (braces, semicolons etc.) and gets you in position to start the next statement  Is helpful in auto-closing parentheses, adding semicolons, completing if, while and for statements etc.  Available for type members, statements, and expressions Nested method invocation: before Complete Statement: Nested method invocation: after Complete Statement: 18
    • Parameter Info When you call a method, Parameter Info (Ctrl+Shift+Space):  Automatically shows all available signatures and parameters with relevant documentation  Grays out inapplicable signatures as you add new arguments 19
    • Quick Documentation Quick Documentation (Ctrl+Shift+F1):  Shows a pop-up with available doc for any documented symbol  Does so in the text editor, in any ReSharper tool window, or within documentation comments  Provides hyperlinks to detailed information and documentation for related symbols 20
    • Namespace Import Pop-Ups When referencing a non-imported type, ReSharper helps promptly add it to the list of namespace import directives Adding a using directive this way doesnt interrupt your coding session When pasting code from another part of your application, ReSharper will offer to import all required types: 21
    • Live Templates Live templates are predefined code fragments (expressions, constructs, classes, methods etc.) that can be quickly inserted into code By default, ReSharper 5 provides more than 20 live templates for C#, 17 for VB.NET, 6 for ASP.NET and 3 for XML  Iterating through collections  Creating assertion methods  Creating new arrays  Outputting values  Coding LINQ queries  Generating auto-properties 22
    • Surround Templates Surround templates let you select code and surround it with code from a live template (e.g., with a try-catch block) Select the text to surround and press Ctrl+E,Ctrl+U to open up a list of surround templates Use keyboard shortcuts to select one of the templates Choose More… to see all available templates and select which ones appear in the quicklist 23
    • Structural Search and Replace (SSR) SSR lets you create your own patterns to search for code smells, legacy code constructs, etc. Open the patterns catalog in ReSharper | Tools | Patterns Catalog Define your own patterns and what to replace them with ReSharper will highlight instances where pattern matches, and offers the quick-fix for replacement: 24
    • Navigate To Navigate To (Alt+`): context menu that shows all navigation options available at the current caret position: 25
    • Navigate To (cont.) Specifically, you can navigate to:  Declaration  Conflicting declarations  Implementation  Member overloads  Base symbols  Related files  Derived symbols  To-do explorer  Types of symbol  Test explorer  Usages of symbol  Object browser  Control flow target  Metadata view  Function exit(s)  Sources from symbol files  Overriding members  Decompiled sources 26
    • Navigate To (cont.) You can navigate to source files  ReSharper downloads PDBs from located outside your solution the source server…  E.g., .Net Framework Source Code Simply select navigation to external symbol  And displays the source file: 27
    • Call & Value Tracking ReSharper lets you can track…  Inspections indicate all affected Incoming and outgoing locations up/down the call chain: calls to a method (method calls resulting in this call being made, or calls resulting from the call of this method) Origin and destination of values (who provides the value and where it goes) Menu items are available under ReSharper | Inspect 28
    • Generate Generate drop-down menu (Alt+Ins) helps:  Implement and override members  Generate properties  Generate type constructors  Generate delegating members  Generate equality members  Generate formatting members 29
    • Refactor This ReSharper provides 40+ solution-wide refactorings. Refactor This (Ctrl+Shift+R): context menu to view and call refactorings available at a certain code position: 30
    • Find Usages Find Usages (Alt+F7) quickly locates usages of a symbol solution-wide In mixed-language solutions, finds usages multiple languages Search results are displayed in the Find Results window: 31
    • Navigation & Search3 groups of "go to" navigation commands. Group 1: Navigate from anywhere. Commands in this group open in pop- up windows, support CamelHumps and wildcards (* for 0 or more characters, ? for 1 or more characters):  Go to Symbol  Go to Type  Go to File Member  Go to File 32
    • Navigation & Search (cont.) Group 2: Navigate from occurrence of a specific symbol. Navigate from Here is used as a shortcut for these commands:  Go to Declaration  Go to Type Declaration  Go to Base  Go to Inheritor  Go to Usages 33
    • Navigation & Search (cont.) Group 3: Navigate from anywhere within a type:  Go to Next/Previous Member  Go to Containing Declaration+ Go to Last Edit Location navigates to the point of the most recent code modification 34
    • View Recent Edits Recent Edits (Ctrl+Shift+,) is a pop-up window similar to Recent Files that shows files and symbols that you have recently modified: 35
    • Locate in Solution Explorer Locate in Solution Explorer (Shift+Alt+L) highlights the currently opened file in Solution Explorer and auto-scrolls to its entry: It is especially useful in large solutions, or when screen area limitations forces you to shrink the Solution Explorer window to the limit 36
    • File Structure File Structure window (Ctrl+Alt+F) shows members or elements that the current code or markup file contains, and lets you navigate directly to their declarations: 37
    • Type Hierarchy Type Hierarchy (Ctrl+Alt+H at a type usage) shows the inheritance hierarchy of a specified type; its base types and inheritors: 38
    • ReSharper Refactorings The richest set of automated solution-wide refactorings for C# and VB available in Visual Studio ecosystem (40+ refactorings as of R# 5) 200+ context actions = “mini-refactorings” Each code refactoring analyzes the entire scope of the code selection to which it is applied (as wide as whole solution), including cross-language code 39
    • ReSharper Refactorings (cont.) Refactorings can be invoked with:  Individual keyboard shortcuts (whenever available)  Refactor This (Ctrl+Shift+R) context menu that lists contextually available refactorings  ReSharper | Refactor menu  Some refactorings can be triggered with context actions (watch the yellow bulb) If a conflict is detected that prevents running a refactoring, a special warning screen is shown, and the user can modify the code to resolve the issue 40
    • In-Place Refactorings ReSharper can detect when changes in code lead to a refactoring. In this case, the refactoring is offered in-place via a context action. For example, when a variable is renamed, the Rename refactoring is offered in-place: 41
    • Code Cleanup Code Cleanup (Ctrl+E,C) combines customizable code formatting in any scope with a set of other useful actions, including:  Removing code redundancies (C#)  Optimizing namespace import directives (C#, VB.NET)  Reordering type members (C#)  Migrating to C# 3.0/4.0 For example, you can simply run Code Cleanup to remove code redundancies instead of navigating between individual warnings and fixing them one-by-one 42
    • Unit Testing ReSharper recognizes NUnit tests and lets you run or debug them in Visual Studio You can run or debug:  A single unit test  All tests in a test class  All tests in a project  All tests in a solution ReSharper provides two tool windows – Unit Test Explorer and Unit Test Sessions – to view, run and manage unit tests 43
    • Support for ASP.NET MVC Special syntax highlighting for  Dedicated code completion to ASP.NET MVC method calls help you reference actions and and parameters controllers in string literals: Navigation to/from actions and controllers Creation of new controllers and actions from usage 44
    • Support for HTML/CSS/JavaScript ReSharper comes with comprehensive support for HTML, CSS and JavaScript, including  Inspections  Refactorings  Navigation  And a lot more… 45
    • Localization Localizable strings are highlighted  Refactorings (move, rename, and context actions are available inline, safe delete) are available for moving them to resources on resources  A special version of the File Structure window is available for viewing resource files  Resource-specific code inspections are available  Find Usages works naturally on resources  Navigation items “Go to Inheritor” This functionality is available not and “Go to Base” help you move just in code, but also in web apps between culture-neutral and and arbitrary HTML strings culture-specific resource files 46
    • Color AssistanceReSharper helps identify colors in code (C#, VB) andmarkup (XAML, CSS) by using the color to underlinethe identifier:Completion menus are stylized CSS support also comes with ato show colors: dedicated color palette: 47
    • DecompilerNo source? No problem! ReSharper comes with abuilt-in decompiler**Also available separately as dotPeek, see http://jetbrains.com/decompiler 48
    • Optimize ReferencesReSharper can show you details of how project references areused in your project:Alternatively, you can just quickly remove all unused ones: 49
    • ReSharper Plugins Some of ReSharper plug-ins include:  Gallio: support for MbUnit, MSTest, NBehave, NUnit and xUnit.Net  Agent Smith: validation of XML comments and naming conventions; spell checking in XML comments, string literals, identifiers and resources  Agent Johnson: miscellaneous tools and refactorings  StyleCop for ReSharper: support for Microsoft StyleCop 50
    • Summary: Most Important Shortcuts Alt+Enter: display the list of available quick-fixes and/or context actions Alt+Ins: show code generation options Alt+` (Navigate To): show available navigation options Ctrl+Shift+R (Refactor This): show available refactorings Ctrl+Space (Symbol Completion), Ctrl+Alt+Space (Smart Completion), Shift+Alt+Space (Import Symbol Completion) Ctrl+E,C (Code Cleanup) 51