This documentation is archived and is not being maintained.

WorkflowServiceHost.OnBeginOpen Method

Visual Studio 2010

Begins an asynchronous operation invoked when the workflow service host is opened.

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

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


Type: System.TimeSpan
The period of time the asynchronous open operation has to complete before timing out.
Type: System.AsyncCallback
The asynchronous callback delegate that receives notification of the completion of the asynchronous open operation.
Type: System.Object
User-define state data that is associated with the asynchronous open operation.

Return Value

Type: System.IAsyncResult
A reference to the asynchronous operation.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.