OnBeginOpen Method

CommunicationObject.OnBeginOpen Method (TimeSpan, AsyncCallback, Object)

 

Inserts processing on a communication object after it transitions to the opening state due to the invocation of an asynchronous open operation.

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

Protected MustOverride Function OnBeginOpen (
	timeout As TimeSpan,
	callback As AsyncCallback,
	state As Object
) As IAsyncResult

Parameters

timeout
Type: System.TimeSpan

The TimeSpan that specifies how long the on open operation has to complete before timing out.

callback
Type: System.AsyncCallback

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

state
Type: System.Object

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

Return Value

Type: System.IAsyncResult

The IAsyncResult that references the asynchronous on open operation.

Exception Condition
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.

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

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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