CommunicationObject.OnBeginOpen Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
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)
Syntax
'Declaration
Protected MustOverride Function OnBeginOpen ( _
timeout As TimeSpan, _
callback As AsyncCallback, _
state As Object _
) As IAsyncResult
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.
Remarks
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.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.