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ActivityMetadata.RequireExtension<T> Method

Specifies that the activity requires an extension of the specified generic type at runtime.

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

public void RequireExtension<T>()
where T : class

Type Parameters

T

The type of the extension.

If the host fails to provide an extension of the specified type, validation fails.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

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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