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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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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