Hi All,

Is there a way to display a modal window when a submit button is clicked

Use Case is

Button button = new Button("bbutton")
{
         protected void onSubmit()
         {
                   if(isValidInput())
                   {
                            // do process and traverse to next screen
                   }
                   else
                   {
                            // show a modal dialog with messages
                   }
         }
}


Thanks
Dipu
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