ReSharper is a plugin for Visual Studio that provides intelligent code completion, navigation, refactoring, and analysis features. It supports various programming languages like C#, VB.NET, XML, HTML, CSS and JavaScript. ReSharper helps improve coding productivity through features like continuous code analysis, quick fixes, navigation between symbols, code generation, and unit testing integration. It also enables powerful refactoring capabilities at both the local and solution-wide level.

1. Introducing
The most intelligent plug-in for
Visual Studio
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2. 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…
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3. Visual Studio with ReSharper
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4. Syntax Highlighting
R# extends VS highlighting:
 For fields, variables, constants, methods, operators, types, etc.
 In C# and VB.NET:
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5. Code Analysis
R# provides on-the-fly code quality analysis.
4 categories of analysis results:
 Errors
 Warnings
 Suggestions
 Hints
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6. Code Inspections Wiki
Some 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:
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7. 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 doesn't contain errors or
warnings
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8. 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
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9. 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:
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10. 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
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11. 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
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12. 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"
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13. Symbol Completion
 Suggesting type-based variable names:
 Suggesting members of a class:
 Suggesting visible types:
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14. Symbol Completion (cont.)
 Suggesting C# keywords:
 Symbol completion using CamelHumps:
 Completing names of symbols in build scripts:
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15. 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
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16. Smart Completion (cont.)
 In object initializers:
 In lambda expressions:
 Creating a local variable in place of an out parameter:
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17. Import Completion
 In C# for extension methods:
 In C# using CamelHumps:
 In ASP.NET:
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18. 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:
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19. 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
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20. 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
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21. 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 doesn't interrupt your coding session
 When pasting code from another part of your application, ReSharper will
offer to import all required types:
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22. 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
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23. 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
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24. 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:
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25. Navigate To
 Navigate To (Alt+`): context menu that shows all navigation options
available at the current caret position:
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26. 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
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27. 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:
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28. 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
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29. 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
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30. 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:
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31. 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:
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32. Navigation & Search
3 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
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33. 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
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34. 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
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35. 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:
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36. 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
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37. 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:
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38. Type Hierarchy
 Type Hierarchy (Ctrl+Alt+H at a type usage) shows the inheritance
hierarchy of a specified type; its base types and inheritors:
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39. 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
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40. 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
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41. 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:
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42. 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
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43. 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

44. 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
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45. Support for HTML/CSS/JavaScript
 ReSharper comes with comprehensive support for HTML, CSS and
JavaScript, including
 Inspections
 Refactorings
 Navigation
 And a lot more…
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46. 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
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47. Color Assistance
ReSharper helps identify colors in code (C#, VB) and
markup (XAML, CSS) by using the color to underline
the identifier:
Completion menus are stylized CSS support also comes with a
to show colors: dedicated color palette:
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48. Decompiler
No source? No problem! ReSharper comes with a
built-in decompiler*
*Also available separately as dotPeek, see http://jetbrains.com/decompiler 48

49. Optimize References
ReSharper can show you details of how project references are
used in your project:
Alternatively, you can just quickly remove all unused ones:
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50. 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
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51. 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)
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