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'using' directive placement (IDE0065)

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Property Value
Rule ID IDE0065
Title using directive placement
Category Style
Subcategory Language rules (using directive preferences)
Applicable languages C#
Options csharp_using_directive_placement

Overview

This style rule concerns the preference of placing using directives outside or inside the namespace.

Options

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

csharp_using_directive_placement

Property Value Description
Option name csharp_using_directive_placement
Option values outside_namespace Prefer using directives to be placed outside the namespace
inside_namespace Prefer using directives to be placed inside the namespace
Default option value outside_namespace 
// csharp_using_directive_placement = outside_namespace
using System;

namespace Conventions
{
    ...
}

// csharp_using_directive_placement = inside_namespace
namespace Conventions
{
    using System;
    ...
}

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 IDE0065
// The code that's violating the rule is on this line.
#pragma warning restore IDE0065

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

[*.{cs,vb}]
dotnet_diagnostic.IDE0065.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