OnBeginOpen Method

CommunicationObject.OnBeginOpen Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

When implemented in a derived class, 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 abstract IAsyncResult OnBeginOpen(
	TimeSpan timeout,
	AsyncCallback callback,
	Object state
)

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.

ExceptionCondition
ArgumentOutOfRangeException

timeout is less than zero.

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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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