OnBeginOpen Method

CommunicationObject.OnBeginOpen Method

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 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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