My situation is this:

OBS:I have only filmaker 8.5 so no conditional formating.

I need to make a field unchangeable depending on a value of another field.

I could make it disapear if i had conditional formating....

So is this possible in Filemaker 8.5???

Rather than guessing what you're after, could you give us more details? An example using details of your actual scenario.

One way of doing this is by making the field a button. Write a script that includes the following and attach it to the button:

If[testField =/= test]

Go To Field[yourField]

End If

Thanks a Bunch DJ u are the best!