Occurs on the client side before the drop down window is closed and allows you to cancel the operation.
The QueryCloseUp event's data class is ASPxClientCancelEventArgs. The following properties provide information specific to this event:
|cancel||Specifies whether to cancel the related action (for example, row edit, export).|
Each time a drop down window is going to be closed on the client side, the QueryCloseUp event occurs. You can cancel closing the window by setting the ASPxClientCancelEventArgs.cancel property to true.