ReSharper 2020.3 Help

Invert Boolean refactoring

ReSharper | Refactor | Invert Boolean…
ReSharper_InvertBool

This refactoring allows you to automatically modify a boolean member so that its value is inverted. If you apply this refactoring to a boolean field or a property, ReSharper lets you specify a new name and invert all its usages, that is if you refactor private bool isEnabled; to private bool isDisabled;, ReSharper will make sure that, for example, if(isEnabled) becomes if(!isDisabled) everywhere.
If you apply this refactoring to a boolean method, ReSharper lets you choose whether to invert its internal logic, usages, or both.

In the example below, we use this refactoring to invert the IsEven method. We specify a new name IsOdd and choose to invert both the internal logic and usages:

public bool IsEven(int input) { return input % 2 == 0; } public void Test(int value) { if (IsEven(value)) Console.WriteLine("\n the number is even"); }
public bool IsOdd(int input) { return input % 2 != 0; } public void Test(int value) { if (!IsOdd(value)) Console.WriteLine("\n the number is even"); }

Invert a boolean method or property

  1. Place the caret at the declaration or a usage of a boolean member in the editor, or select it in the File Structure window.

  2. Do one of the following:

    • Press Control+Shift+R and then choose Invert Boolean

    • Right-click and choose Refactor | Invert Boolean in the context menu.

    • Choose ReSharper | Refactor | Invert Boolean… in the main menu.

  3. If no conflicts are found, ReSharper performs the refactoring immediately. Otherwise, it prompts you to resolve conflicts.

This feature is supported in the following languages and technologies:

Language: C# Language: VB.NET Language: C++ Language: HTML Language: ASP.NET Language: Razor Language: JavaScript Language: TypeScript Language: CSS Language: XML Language: XAML Language: Resx Language: Build Scripts Language: Protobuf Language: JSON
Feature is available in C# Feature is not available in Visual Basic .NET Feature is not available in C++ Feature is not available in HTML Feature is not available in ASP.NET Feature is not available in Razor Feature is not available in JavaScript Feature is not available in TypeScript Feature is not available in CSS Feature is not available in XML Feature is not available in XAML Feature is not available in Resource files Feature is not available in build script files Feature is not available in Protobuf Feature is not available in JSON
Last modified: 03 September 2020