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executing a formula from a text control

executing a formula from a text control

executing a formula from a text control

(OP)
Is there any way that I can execute a formula from a variable?
like:
x = 3
y = 7

formula = "x + y"

result = formula

so that result will be = 10 ?
The user would enter the formula on a textbox and the program should execute whatever is on the control.
I use that a lot in Clipper and but now I am stuck!

RE: executing a formula from a text control

There used to be an example of a recursive descent parser (which is what you're after) that came with VB3 - probably still on the Microsoft archives somewhere, have a poke around.

Mike

RE: executing a formula from a text control

(OP)
thanks, i will look

RE: executing a formula from a text control

(OP)
Is there a Eval() function out there tht I can use in VB5?

RE: executing a formula from a text control

dream on - sorry
-ml

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