hello all:
i came across a strange problem which seems quite simple:
i have a button and a label on a panel, the button has been
registered a listener:
Button searchButton = new Button( "Search" );
searchButton.addClickHandler( new ClickHandler()
{
@Override
public void onClick( ClickEvent event )
{
infoLabel.setText("Beginning....");
//do a search operation here which will take more than
5 seconds...
infoLabel.setText("Completed...");
}
} );
that's all, but i never see the "Beginning....“ on the label, but only
see the "completed...", seem the label will not refresh it's text
until onClick is finished? how can i achieved the function that
display "beginning..." first and "Completed..." when the operation
completed?
thanks in advance.
-Shelley
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