ReSharper 2017.1 Help

Code Syntax Style: Optional Member Qualifiers

In C#, you can qualify instance members with this keyword, and qualify static members with type name or a base type name. These qualifiers help you disambiguate members hidden by local variables or method parameters. In all other cases, these modifiers are optional, and you can decide for yourself whether to use them or not. With ReSharper, you can configure your preferences for using optional modifiers and enforce these preferences.

ReSharper helps you adjust optional member qualifiers in the existing code and takes your preferences into account when it produces new code with code completion and code generation features, applies code templates and performs refactorings.

In this topic:

Enforcing preferences for optional member qualifiers

By default, ReSharper treats all optional member qualifiers as redundant and suggests removing them.

Suggestion to remove redundant qualifier

If you prefer to use optional qualifiers, you need to specify it explicitly as described below. For example, you may prefer to qualify static methods with the type where they are declared:

Preferences for member qualifiers

As soon as you change the preferences, ReSharper will treat the same code differently and suggest the corresponding corrections:

Suggestion to qualify with the base type name

Another option to enforce preferences for member qualifiers in a bulk mode is code cleanup. You can either run code cleanup with the default profile Default: Full Cleanup or run the cleanup with a custom profile solely targeted at your specific task as described below.

To apply preferences for member qualifiers with code cleanup

  1. Open the Code Cleanup options: ReSharper | Options | Code Editing | Code Cleanup.
  2. Create a new profile as described in the Code Cleanup section. In the Selected profile settings section for the new profile, tick the Arrange qualifiers check box.
  3. Click Save to apply the modifications and let ReSharper choose where to save them, or save the modifications to a specific settings layer using the Save To drop-down list. For more information, see Managing and Sharing ReSharper Settings.
  4. Select the scope where you want to enforce your preferences:
    • Set the caret anywhere in the file to enforce your preferences to the file.
    • Select one or more items in the Solution Explorer to enforce your preferences in the files under these nodes and their child items.
  5. Do one of the following:
    • Press Ctrl+Alt+F or choose ReSharper | Edit | Cleanup Code in the main menu.
    • Right-click anywhere in the text editor or right-click the selection and choose Cleanup Code in the context menu.
  6. In the Code Cleanup dialog that opens, select the newly created profile.
  7. Click Run. ReSharper will enforce your preferences in the selected scope.

If you want to apply preferences for member qualifiers without opening the Code Cleanup dialog, you can bind the created profile to the silent cleanup and run it simply by pressing Ctrl+Shift+Alt+F. You can also create a custom cleanup profile that would combine applying the preferences with other code style tasks.

Configuring preferences of optional member qualifiers

Your member qualifiers style preferences are saved using the mechanism of shared settings. Among other things, this mechanism allows you to maintain different preferences for different solutions as well as to keep these preferences under a VCS and automatically share them with your team members.

To configure preferences for member qualifiers

  1. Go to the Code Editing | C# | Code Style page of ReSharper options.
  2. Modify settings in the Instance member qualification and Static member qualification categories according to your coding practices/standards.
  3. The Notify with selectors in the right column allow you to set severity levels of code inspections detecting code that differs from your preferences.
  4. Click Save to apply the modifications and let ReSharper choose where to save them, or save the modifications to a specific settings layer using the Save To drop-down list. For more information, see Managing and Sharing ReSharper Settings.

This feature is supported in the following languages/technologies:

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Last modified: 12 October 2017
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