Simplify conditional expression (IDE0075)

Property	Value
Rule ID	IDE0075
Title	Simplify conditional expression
Category	Style
Subcategory	Language rules (expression-level preferences)
Applicable languages	C# and Visual Basic
Options	dotnet_style_prefer_simplified_boolean_expressions

Overview

This style rule concerns simplifying conditional expressions that return a constant value of true or false versus retaining conditional expressions with explicit true or false return values.

Options

Options specify the behavior that you want the rule to enforce. For information about configuring options, see Option format.

dotnet_style_prefer_simplified_boolean_expressions

Property	Value	Description
Option name	dotnet_style_prefer_simplified_boolean_expressions
Option values	true	Prefer simplified conditional expressions
	false	Do not prefer simplified conditional expressions
Default option value	true

C#

// dotnet_style_prefer_simplified_boolean_expressions = true
var result1 = M1() && M2();
var result2 = M1() || M2();

// dotnet_style_prefer_simplified_boolean_expressions = false
var result1 = M1() && M2() ? true : false;
var result2 = M1() ? true : M2();

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.

C#

#pragma warning disable IDE0075
// The code that's violating the rule is on this line.
#pragma warning restore IDE0075

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

ini

[*.{cs,vb}]
dotnet_diagnostic.IDE0075.severity = none

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

ini

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

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

See also

• Conditional operator
• Code style language rules
• Code style rules reference