DesignSurfaceExtensionAttribute Constructor (Type^)

Visual Studio 2015

Creates a new instance of the DesignSurfaceExtensionAttribute class specifying a given object as providing a VSPackage's implementation of DesignSurfaceExtension.

Namespace: Microsoft.VisualStudio.Shell.Design
Assembly: Microsoft.VisualStudio.Shell.Design (in Microsoft.VisualStudio.Shell.Design.dll)

Syntax

C++

public:
DesignSurfaceExtensionAttribute(
	Type^ extensionType
)

Parameters

extensionType: Type: System::Type^
The Type of the object providing an implementation of DesignSurfaceExtension to customize design surfaces.

Exceptions

Exception	Condition
ArgumentNullException	extensionType is null.
ArgumentException	extensionType does not derive from DesignSurfaceExtension.

Remarks

Whenever the VSPackage makes use of a design surface, an instance of extensionType object will be used to modify that surface's behavior.

The Type used to construct the DesignSurfaceExtensionAttribute must also be registered as an object provided by the VSPackage, with ProvideObjectAttribute and a service, with ProvideServiceAttribute.

Examples

The example below declares that the VSPackage CustomDesigner, provided the class CustomSurfaceExt to customize the design surface it uses.

[ProvideServiceAttribute(typeof(CustomSurfaceExt))]
[ProvideObjectAttribute(typeof(CustomSurfaceExt))]
[DesignSurfaceExtension(typeof(CustomSurfaceExt))] 
class CustomDesigner : Package