See Pauls answer. In addition if you do not want to hide the combo box, just
set a message to it and disable it. Then load you combo box data and when
its done clear the combo box, fill in the data and re-enable it.
-- J.
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I think you just have to get used to async programming. Its all about events
and callbacks in GWT. Any kind of client server communication in GWT is
async so there are no real alternatives that allows you to block execution.
A web application lives from asynchronous communication.
As said
