Equivalent of isnumeric in C# 1

[nnmmss72]

i want to test whether a string is numeric or not. like the function of isnumeric in VB. i found this
Regex isNumeric = new Regex("[09]");
bool x = isNumeric.IsMatch(myString);
in

http://www.tek-tips.com/viewthread.cfm?qid=946844

but i don't know how can i use Regex, which refenece should i use for that. i cann't access to it . and also i didn't find any help for that .i am using asp.net 1.0

 

[ca8msm]

The RegEx class is part of System.Text.RegularExpressions namespace.

Also, another method you may be able to use is Decimal.TryParse.


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[nnmmss72]

ok i did az following

Regex isNumeric = new Regex("[09]");
bool x;

String tmpstr="5";
x = isNumeric.IsMatch(tmpstr);

but x is always false. what is wrong in my syntax?

 

[nnmmss72]

sorry my mistake
it should be
Regex isNumeric = new Regex("[0-9]");