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B6001 - Why is Eval not working for me?

by - Joseph Ganci

I'm trying to use a variable to hold the name of a currently checked button so that if an other button becomes checked then I can uncheck the previous button. I need to use a variable as I have no way of knowing which was the previous button that was check. I tried using the EVAL command" 

    string := "Checked@\""^variable^"\" := FALSE" 
    Eval(string) 

However this doesn't seem to work. Any ideas appreciated.

Eval will not work for assignment operations (using := ). Use EvalAssign instead and everything in the world will suddenly be perfect. Hope this helps! 

If you are using version 4.0 or later:  Variables like Checked that normally use the @ designator can now take variables instead of literal icon title strings.  The above two lines can be rewritten as: 

    Checked@variable := FALSE

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