C# Regex.IsMatch returns true when it shouldn't?
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James Cadd
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Published on 2011-01-09T22:32:32Z
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2011/01/09
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I'm attempting to match a string that can contain any number of numeric characters or a decimal point using the following regex:
([0-9.])*
Here's some C# code to test the regex:
Regex regex = new Regex("([0-9.])*");
if (!regex.IsMatch("a"))
throw new Exception("No match.");
I expect the exception to be thrown here but it isn't - am I using the Regex incorrectly or is there an error in the pattern?
EDIT: I'd also like to match a blank string.
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