Numeric Value and possibly including decimal values (.)

Hi All,

I am wanting to use ASP.Net's RegularExpressionValidator control for a form field that should only allow numeric values including decimal values.

Please could any provide the Regular expression statement for this?

Many thanks,

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to test it use:

Oops, wrong number of +/- possible.

Correct one: ^[\+\-]{0,1}\d+\.{0,1}\d*$

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rito1Author Commented:
Excellent, many thanks.. love the testing tool too!
You could shorten that pattern to:
That's correct, however the pattern itself is the same when transformed to an internal state engine. So, there is no performance benefit, it's just a shorter definition string.
I don't have performance testing that shows a benefit either way, I just was noting there was a shorter way to display that.
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Regular Expressions

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