Causes a communication object to transition from its current state into the closed state.
Assemblies: System.ServiceModel (in System.ServiceModel.dll)
System.ServiceModel.Primitives (in System.ServiceModel.Primitives.dll)
The communication object is in a Faulted state and cannot be modified.
The default interval of time that was allotted for the operation was exceeded before the operation was completed.
This method causes a CommunicationObject to gracefully transition from any state, other than the Closed state, into the Closed state. The Close method allows any unfinished work to be completed before returning. For example, finish sending any buffered messages.
The CommunicationObject enters the Closing state and remains in it after the Close method is called until the transition to the Closed state is completed. The transition consists of making successive calls to OnClosing, OnClose(TimeSpan), and OnClosed.
There is also an asynchronous version of the close method that is initiated by calling BeginClose.
.NET FrameworkSupported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
Portable Class LibrarySupported in: Portable Class Library
.NET for Windows Store appsSupported in: Windows 8
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8
Windows Phone 8.1, Windows Phone 8, 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)