ReSharper 2022.1 Help

Invert Boolean refactoring

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: 30 September 2021