Use expression body for methods (IDE0022)

Artikulo
07/25/2023

Property	Value
Rule ID	IDE0022
Title	Use expression body for methods
Category	Style
Subcategory	Language rules (expression-bodied members)
Applicable languages	C#
Options	`csharp_style_expression_bodied_methods`

Overview

This style rule concerns the use of expression bodies versus block bodies for methods.

Options

Set the value of the associated option for this rule to specify whether expression bodies or block bodies for methods are preferred, and if expression bodies are preferred, whether they're preferred only for single-line expressions.

For more information about configuring options, see Option format.

csharp_style_expression_bodied_methods

Property	Value	Description
Option name	csharp_style_expression_bodied_methods
Option values	`true`	Prefer expression bodies for methods
	`when_on_single_line`	Prefer expression bodies for methods when they will be a single line
	`false`	Prefer block bodies for methods
Default option value	`false`

// csharp_style_expression_bodied_methods = true
public int GetAge() => this.Age;

// csharp_style_expression_bodied_methods = false
public int GetAge() { return this.Age; }

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 IDE0022
// The code that's violating the rule is on this line.
#pragma warning restore IDE0022

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

ini

[*.{cs,vb}]
dotnet_diagnostic.IDE0022.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.

Ibahagi sa