DateRangeVal ( LowDate ; HighDate )
Date Range Validation
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Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
Checks that datefields are valid first then checks that High date is actually higher than Low Date.
I made this because i let my users report over a date range. So i present a custom dialog and use this as a pre-script sort of thing.
Edit: I posted this CF ages and ages ago, and the 20 lines of code didn't really seem to do much. Anyway, I suppose it's still useful for validating text based date input.
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