Alert message is working but custom message through message box is not working.Thanks

Thank you I tried the above approach still its not working .Thanks

Hi ,I tried this approach as well its not working, still I see the default message.I think the problem in this dialog is included as cq:include in another dialog which might not allowing it ?Thank you

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Hi Team,I am trying to show the custom message on dialog field if not valid using validate property.validate   string (type)   function(){ var Value = this.getValue(); if(Value.length > 0){ this.markInvalid('Please enter correct value'); return false; } }Still I am getting the default error message ...