CommunicationObject.OnBeginOpen(TimeSpan, AsyncCallback, Object) CommunicationObject.OnBeginOpen(TimeSpan, AsyncCallback, Object) CommunicationObject.OnBeginOpen(TimeSpan, AsyncCallback, Object) CommunicationObject.OnBeginOpen(TimeSpan, AsyncCallback, Object) Method

Definition

Inserts processing on a communication object after it transitions to the opening state due to the invocation of an asynchronous open operation.

protected:
 abstract IAsyncResult ^ OnBeginOpen(TimeSpan timeout, AsyncCallback ^ callback, System::Object ^ state);
protected abstract IAsyncResult OnBeginOpen (TimeSpan timeout, AsyncCallback callback, object state);
abstract member OnBeginOpen : TimeSpan * AsyncCallback * obj -> IAsyncResult
Protected MustOverride Function OnBeginOpen (timeout As TimeSpan, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters

timeout
TimeSpan TimeSpan TimeSpan TimeSpan

The TimeSpan that specifies how long the on open operation has to complete before timing out.

callback
AsyncCallback AsyncCallback AsyncCallback AsyncCallback

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

state
Object Object Object Object

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

Returns

The IAsyncResult that references the asynchronous on open operation.

Exceptions

The communication object is not in a Opened or Opening state and cannot be modified.

The communication object is in a Closing or Closed state and cannot be modified.

The default interval of time that was allotted for the operation was exceeded before the operation was completed.

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.

Applies to