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UriParser.IsKnownScheme Method

Indicates whether the parser for a scheme is registered.

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

public static bool IsKnownScheme(
	string schemeName


Type: System.String

The scheme name to check.

Return Value

Type: System.Boolean
true if schemeName has been registered; otherwise, false.


The schemeName parameter is null.


The schemeName parameter is not valid.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0