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Convert to top-level statements (IDE0210)

Property Value
Rule ID IDE0210
Title Convert to top-level statements
Category Style
Subcategory Language rules (code-block preferences)
Applicable languages C# 9+
Options csharp_style_prefer_top_level_statements

Overview

This rule flags the use of a Main method entry point in a project that could be converted to top-level statements instead. A candidate method must meet the following requirements:

  • Is static.
  • Is named Main.
  • Has a method body.
  • Has no type parameters.
  • Is contained in a type that's not public, doesn't derive from another type or implement an interface, isn't a nested type, and has no attributes or documentation comments.

Options

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

csharp_style_prefer_top_level_statements

Property Value Description
Option name csharp_style_prefer_top_level_statements
Option values true Prefer top-level statements.
false Disables the rule.
Default option value true

Example

// Code with violations.
internal class Program
{
    private static void Main(string[] args)
    {
        Console.WriteLine("Hello world.");
    }
}

// Fixed code.
Console.WriteLine("Hello world.");

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 IDE0210
// The code that's violating the rule is on this line.
#pragma warning restore IDE0210

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

[*.{cs,vb}]
dotnet_diagnostic.IDE0210.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

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