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CodeGenerator.CreateValidIdentifier Method

Creates a valid identifier for the specified value.

Namespace:  System.CodeDom.Compiler
Assembly:  System (in System.dll)

protected abstract string CreateValidIdentifier(
	string value


Type: System.String

A string to create a valid identifier for.

Return Value

Type: System.String
A valid identifier for the value.

CreateValidIdentifier tests whether the identifier conflicts with reserved or language keywords, and if so, returns a valid identifier name that does not conflict. The returned identifier contains the same value but includes escape code formatting to differentiate it from conflicting keywords. Typically, if the value requires modification, it is preceded by an underscore "_".


The default implementation of this method does nothing.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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