No callback for ListGrid.exportData

[lchen]

The export to excel action is carried out with the ListGrid.exportData method. Since the action is slow, the user needs to be shown that the action is in progress, either in the form of a prompt ,or mouse busy symbol. But because the callback for the exportData is not defined the promt/mouse clearing action cannot be performed. Is there any other way to achieve this functionality.

SmartClient version 7

[Isomorphic]

Unfortunately, there's no way, from within the browser, to detect that a download has begun or has completed other than opening a second connection to the server to check whether the download has completed. And this approach would require JMS message passing in a clustered environment. The best approach is what you see various download sites do: just put up a message indicating that the export/download will begin momentarily.