CommunicationObject.OnOpen 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 into the opening state which must complete within a specified interval of time.
Namespace: System.ServiceModel.Channels
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Syntax
'Declaration
Protected MustOverride Sub OnOpen ( _
timeout As TimeSpan _
)
protected abstract void OnOpen(
TimeSpan timeout
)
Parameters
- timeout
Type: System.TimeSpan
The Timespan that specifies how long the on open operation has to complete before timing out.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | timeout is less than zero. |
| TimeoutException | The interval of time specified by timeout that was allotted for the operation was exceeded before the operation was completed. |
Remarks
The Open method calls OnOpen(TimeSpan) (after calling OnOpening and before calling OnOpened) if the communication object is initially in the Created state.
To insert processing as a communication object transitions to a opening state due to the invocation of an asynchronous OnBeginOpen(TimeSpan, AsyncCallback, Object) operation, use the OnOpening 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.