Name
IsClientConnected
Synopsis
Boolean = Response.IsClientConnected
Returns
a Boolean indicating whether the
client is still connected. Returns False
if the
client is no longer connected.
Parameters
-
Boolean
A Boolean variable to receive the value of the property.
Example
The example checks the IsClientConnected property before starting a
long-running processing task in order to avoid the expense of running
the task if the client is no longer connected. If the property
returns False
, the code calls the Response.End
method. Even though the client has disconnected and can no longer
receive the buffered output (which is sent when the End method is
called), calling the End method is still a good idea, since it will
halt further processing of the page and fire the
Application_EndRequest event. If you have written cleanup code for
the page that is run by the event handler for Application_EndRequest,
calling Response.End will ensure that the cleanup code is executed,
even if the client disconnects.
Sub Page_Load( ) 'Check client connection status If Response.IsClientConnected = False Then Response.End Else 'Start long-running processing task End If End Sub
Notes
The IsClientConnected property is especially useful for long-running processes that require a significant amount of processing resources on the server. By querying the IsClientConnected property before starting an expensive processing task, or by querying the property periodically during processing, you can bypass further processing ...
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