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Remove unnecessary equality operator (IDE0100)

  • Article
Property Value
Rule ID IDE0100
Title Remove unnecessary equality operator
Category Style
Subcategory Unnecessary code rules (expression-level preferences)
Applicable languages C# and Visual Basic

Overview

This style rule flags an unnecessary equality operator when comparing a non-constant Boolean expression with a constant true or false.

Options

This rule has no associated code-style options.

Example

// Code with violations
if (x == true) { }
if (M() != false) { }

// Fixed code
if (x) { }
if (M()) { }

' Code with violations
If x = True Then
End If

If M() <> False Then
End If

' Fixed code
If x Then
End If

If M() Then
End If

Suppress a warning

If you want to suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the rule.

#pragma warning disable IDE0100
// The code that's violating the rule is on this line.
#pragma warning restore IDE0100

To disable the rule for a file, folder, or project, set its severity to none in the configuration file.

[*.{cs,vb}]
dotnet_diagnostic.IDE0100.severity = none

To disable all of the code-style rules, set the severity for the category Style to none in the configuration file.

[*.{cs,vb}]
dotnet_analyzer_diagnostic.category-Style.severity = none

For more information, see How to suppress code analysis warnings.

See also