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CodeDomProvider.FileExtension Property

Gets the default file name extension to use for source code files in the current language.

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

public virtual string FileExtension { get; }

Property Value

Type: System.String
A file name extension corresponding to the extension of the source files of the current language. The base implementation always returns Empty.

This property is used by code generators and code compilers to indicate what file extensions should be generated or used.

The following code example creates an instance of Microsoft.VisualBasic.VBCodeProvider. The example displays the provider name, hash code and default file name extension for the new provider instance.

            // Get the provider for Microsoft.VisualBasic
            CodeDomProvider provider = CodeDomProvider.CreateProvider("VisualBasic");

            // Display the Visual Basic language provider information.
            Console.WriteLine("Visual Basic provider is {0}", 
            Console.WriteLine("  Provider hash code:     {0}", 
            Console.WriteLine("  Default file extension: {0}", 

.NET Framework

Supported in: 4.6, 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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