
What you need to do is expand the WAATKRegistrationForm by clicking the + button. Once it is expanded you should see an entry called UserCfaNo (or what ever you named the UserCfaNo input field). Double click on it and Press OK. In the DataAssist wizard make sure that the value is updated and press OK.
Let me know if you have any other questions.

Dani that worked thank you so much you made my day
here is the code how i named my UserCfaNo.... just to help anyone else with the same problem.......
<th>CFA Registration Number:</th>
<td><span id="spryUserCfaNo">
<input name="UserCfaNo" type="text" class="WAATKTextField" id="UserCfaNo" value="" size="32"/></span>
</td>
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Dani can you please help me with few more thing ....
How do i add behaviour that CfaNo field cant be empty that user needs to type something in it
thanks in advance