Regular Expression Currency Greater than Zero

I need a regular expression that checks a text box to make sure it's  greater than zero, allows a $ and two places to the right of the decimal.
Example

$0 fails
0 Fails
000000 Fails
0.00 fails

100 Passes
$100 Passes
100.01 passes
.01 passes
whiwexAsked:
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Fernando SotoRetiredCommented:
Hi whiwex;

Try this pattern out to see if it is what you are looking for.

Dim pattern As String = "^(?!(\$?0{1,}\.?(00)?))\$?(\d+)?\.?(\d\d)?$"

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0
Terry WoodsIT GuruCommented:
This cut down modification to @FernandoSoto's pattern should give exactly the same result:

Dim pattern As String = "^(?!\$?0)\$?(\d+)?\.?(\d\d)?$"

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However, I think it accepts an empty string.

Perhaps this pattern would be better?
^\$?(?=.*?[1-9])\d*(\.\d\d)?$

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Note that it will accept values with a leading zero as long as there is a non-zero digit in the value somewhere.
0

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whiwexAuthor Commented:
Thanks it worked great
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