ProviderConnectionPoint.GetSecondaryInterfaces Method
Gets an optional collection of secondary interfaces that can be supported by a provider connection point.
Namespace: System.Web.UI.WebControls.WebParts
Assembly: System.Web (in System.Web.dll)
Parameters
- control
- Type: System.Web.UI.Control
The control acting as the provider in a Web Parts connection.
Return Value
Type: System.Web.UI.WebControls.WebParts.ConnectionInterfaceCollectionA ConnectionInterfaceCollection of additional interfaces provided by the control acting as a provider.
A provider connection point object always has a default interface that is used to establish a connection with consumers. An instance of the default interface is retrieved by calling the GetObject method on a ProviderConnectionPoint object.
However, some provider controls will implement multiple interfaces to provide to consumers as part of a connection. These interfaces, which are not the default ones used to establish a connection, are called secondary interfaces. The GetSecondaryInterfaces method provides a way to return a collection of references to the secondary interfaces, just as the GetObject method returns a reference to the default interface.
Notes to InheritorsThe GetSecondaryInterfaces method in the ProviderConnectionPoint class contains no implementation; it returns an empty collection of secondary interfaces. To implement this method, you must inherit from the ProviderConnectionPoint class, and override this method, returning from it a specific set of secondary interfaces.
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.
