CommunicationObject.BeginOpen Method (AsyncCallback, Object)
Begins an asynchronous operation to open a communication object.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
'Declaration Public Function BeginOpen ( _ callback As AsyncCallback, _ state As Object _ ) As IAsyncResult
- Type: System.AsyncCallback
The AsyncCallback delegate that receives notification of the completion of the asynchronous open operation.
- Type: System.Object
An object, specified by the application, that contains state information associated with the asynchronous open operation.
Return ValueType: System.IAsyncResult
The IAsyncResult that references the asynchronous open operation.
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.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.