Returns a typed object requested, if present, from the appropriate layer in the channel stack.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Use this to request a typed object such as an interface for setting properties or getting status from the appropriate layer in the channel stack. If a layer supports returning the requested object, it returns it. If not, it delegates the call down to the next layer in the stack. If it gets to the bottom of the stack and no channel layer supported the requested object, then the method returns null.
You must implement whenever you implement a channel factory. is an excellent way to communicate information along the channel factory stack without having to know what channel factories are below you, or what channel factories above you are interested in performing queries. Define interfaces for people to query on for any interesting information you have. Whenever you do not recognize the type argument for , delegate down to the next channel factory in the stack or return null if you are creating a new transport channel at the bottom of the stack.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
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.