numbers

I have this textbox as a user input. How do I check if
there's a number in the textbox, and no letters?

Try the isnumeric function.

If isnumeric(text1.text) then

I already figured that out... but thanx anyway :-)

Code:

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'in declarations:
option compare text

If isnumeric(text1) then 'it contains a numeric value
If text1 like "#" then 'it contains a number
if text1 like "*[!A-Z]*" then 'it contains no letters

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There's 2 other possibilities.

Code:

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If Text1 like "*.*" Then    'it contains a decimal
If Text1 like "*-*" Then    'negative numbers

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Hey Keda, now don't get sloppy my boy :)

Code:

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If text1 like "#" then 'will only fire if there is only one number :) (like if string = "2", NOT string = "h280q821")

If text1 like "*#*" then 'this, instead, will fire if there's a number in the string (like if string = "h280q821")

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I wonder where you were, not online my friend (ICQ).

One annoying thing about IsNumeric:

Code:

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?IsNumeric("$-6.0e-4")
True

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Gives me false, remove the "$" and it should give true, thats because -6.0e-4 is expressed as a floating point. -6*10^(-4) which is -0.0004

yeah jop smart-ass! i was thinking about a number as one number. I'm online right now, but youre not:(