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I use a ValueChangeListener in order to validate a field content. At the end of my controls, if the value is wrong I issue an InvalidValueException. If I don't catch the IVE I see a messge box indicating the error and, at sam time the tip containing the same error : this is not the wanted behaviuor. On the other side if I catch the IVE the message is shown in the correct way but operations are not stopped. This is a problem mainly when the validation occurs after a button click : in that case I don't want to execute the code connected to the button because of the validation failed. Is there any way to solve the issue ? Tks Tullio