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Use expression body for accessors (IDE0027)

  • Άρθρο
Property Value
Rule ID IDE0027
Title Use expression body for accessors
Category Style
Subcategory Language rules (expression-bodied members)
Applicable languages C#
Options csharp_style_expression_bodied_accessors

Overview

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

Options

Set the value of the associated option for this rule to specify whether expression bodies or block bodies for accessors 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_accessors

Property Value Description
Option name csharp_style_expression_bodied_accessors
Option values true Prefer expression bodies for accessors
when_on_single_line Prefer expression bodies for accessors when they will be a single line
false Prefer block bodies for accessors
Default option value true
C# 
// csharp_style_expression_bodied_accessors = true
public int Age { get => _age; set => _age = value; }

// csharp_style_expression_bodied_accessors = false
public int Age { get { return _age; } set { _age = value; } }

This rule versus IDE0025

This rule, IDE0027, and IDE0025 (Use expression body for properties) are very similar. IDE0025 concerns the property as a whole, whereas IDE0027 specifically concerns the accessor parts of the property. For more information about the differences between these rules, see IDE0025 versus IDE0027.

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 IDE0027
// The code that's violating the rule is on this line.
#pragma warning restore IDE0027

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

ini 
[*.{cs,vb}]
dotnet_diagnostic.IDE0027.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