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ChannelFactory.OnBeginOpen Method

Begins an asynchronous open operation on the inner channel factory of the current channel factory that has a state object associated with it.

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

protected override IAsyncResult OnBeginOpen(
	TimeSpan timeout,
	AsyncCallback callback,
	Object state


Type: System.TimeSpan

The Timespan that specifies how long the operation has to complete before timing out.

Type: System.AsyncCallback

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

Type: System.Object

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

Return Value

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

This method receives notification, through a callback, of the identity of the event handler for the operation. The operation is not complete until either the asynchronous open on the inner channel factory returns or the time-out occurs.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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