>Thank's to all for the tips you gave me yesterday.
>
>Let me first remind you of what I was trying to solve the problem for.
>I have a form in witch I have a field that can have a value of "Y" or "N" only. In the next field's WhenEvent , I want to test for the content of the first field . If the first field contains "Y" then I enable this field otherwise I dont.
>
>But now I have a new problem. I the user changes is mind an decides to go back to field on and change its content to the other possible value then it does not work.
>
>Here is what I tried , but this time I get an unknown member error.
>The error happens in the LostFocusEvent.
>
>First field , LostFocusEvent :
>
>if this.value = "Y"
> This.parent.second_Field.enabled = .t.
>else
> This.parent.second_Field.enabled = .f.
>endif
>
>Second Field , WhenEvent :
>
>If this.Parent.First_field.value = "Y"
> This.value = table.second_field
>else
> This.value = ""
>endif

Pierre,

An 'Unknown Member' error is telling you that, you are attempting to reference an object and VFP does not know what you are refering to.

If you try debugging the lost focus event of first_field you should be able to see which object reference you are making that VFP does not understand.

Good Luck

Brian Gruselle