Remove unnecessary cast (IDE0004)
Property | Value |
---|---|
Rule ID | IDE0004 |
Title | Remove unnecessary cast |
Category | Style |
Subcategory | Unnecessary code rules (expression-level preferences) |
Applicable languages | C# and Visual Basic |
Overview
This rule flags unnecessary type casts. A cast expression is unnecessary if the code semantics would be identical with or without it.
Options
This rule has no associated code-style options.
Example
// Code with violations
int v = (int)0;
// Fixed code
int v = 0;
' Code with violations
Dim v As Integer = CType(0, Integer)
' Fixed code
Dim v As Integer = 0
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 IDE0004
// The code that's violating the rule is on this line.
#pragma warning restore IDE0004
To disable the rule for a file, folder, or project, set its severity to none
in the configuration file.
[*.{cs,vb}]
dotnet_diagnostic.IDE0004.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
Phản hồi
https://aka.ms/ContentUserFeedback.
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