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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.
  • 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.

Exceptions

Exception Condition
ArgumentOutOfRangeException

timeout is less than zero.

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.