title: How to use key-enter trigger in oracle forms10g
body: <p>I am using oracle forms 10g.<br>
  I have used key-enter trigger.<br>
  I have created 3 text fields in which 2 are for inputs and 1 for result.<br>
  i want show addition of 2 i/p in result field.<br>
  I have used key-trigger for addition but when i pressed <kbd>Enter</kbd> key it doesn't works.</p>