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CommunicationObject.BeginOpen Method (AsyncCallback, Object)

Begins an asynchronous operation to open a communication object.

Namespace:  System.ServiceModel.Channels
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public IAsyncResult BeginOpen(
	AsyncCallback callback,
	Object state
)

Parameters

callback
Type: System.AsyncCallback

The AsyncCallback delegate that receives notification of the completion of the asynchronous open operation.

state
Type: System.Object

An object, specified by the application, that contains state information associated with the asynchronous open operation.

Return Value

Type: System.IAsyncResult
The IAsyncResult that references the asynchronous open operation.

Implements

ICommunicationObject.BeginOpen(AsyncCallback, Object)

ExceptionCondition
InvalidOperationException

The communication object is not in a Opened or Opening state and cannot be modified.

ObjectDisposedException

The communication object is in a Closing or Closed state and cannot be modified.

CommunicationObjectFaultedException

The communication object is in a Faulted state and cannot be modified.

TimeoutException

The default interval of time that was allotted for the operation was exceeded before the operation was completed.

The OnBeginOpen(TimeSpan, AsyncCallback, Object) method calls OnOpening and OnBeginOpen(TimeSpan, AsyncCallback, Object) if the communication object is initially in the Created state.

To insert processing after a communication object transitions to a closing state due to the invocation of a synchronous Open operation, use the Open method.

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.

.NET Framework

Supported in: 3.5, 3.0

.NET Compact Framework

Supported in: 3.5
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