use conditional formatting to set the font size to 500.
Given the very large text size, this may not make the text fully disappear, but try this first as it is the simplest option.
If that doesn't work, you can go "old school" and make this work how we did before we had conditional formatting: Use a calcualtion field that is empty when the invoice is not void and that contains "void" when it is. make the field transparent and deny access to the field in Browse mode by clearing that check box in the Inspector's behavior settings.
You know, I absolutely LOVE FM for most things but everyonce in a while something that should be really simple gets complicated. In REALBasic, and object had a property of "visible" whch could be set programatically.
My "old school" solution may be to set the font to 1 and the font color to the background color of the form and then change that with the conditional formating.
A font size of 1 may still be visible.
A font color matching the background color won't always work if the back gound is not a solid color.
I tried it with a 1pt font and it leaves a very small dot. I placed it in an inconspicuous place and it works fine.
This is acutally a very quick and dirty type app to be used probably for 3 days and then never to be seen again. So a few rough edges are acceptable. The main thing is I can print out a very nice looking receipt or it can be emailed on the spot like the Apple stores do things.
thanks for you help, this forum makes things a lot easier.
I'm a professional photographer and haven't really been considered a software professional for about 17-18 years. But I twiddle with a few photography related apps. My current brick-wall seems to be reading a SQLite database from a FM app. I use Adobe Lightroom as my Digital Asset Manager and the catalog is just a SQLite database. I have cracked the format and can read it with other apps - just not FileMaker.
Oh well, where there's a will there's a way.