regular expression to accept 1 - 9 numeric digits.May not be in the ranges-0090000000 - 009499999,0900000000 - 094000000

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I want regular expression to accept 1 - 9 numeric digits.May not be in the ranges-0090000000 - 009499999,0900000000 - 094000000

I have tired but its not working "^([^0900000000-009499999]|[^0900000000-094000000]|\d{9}|\d{1}|\d{2}|\d{3}|\d{4}|\d{5}|\d{6}|\d{7}|\d{8})$"

Please help me asap.

Regards,
Vijay

Posted 19-Sep-15 7:48am

VijayPd

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OriginalGriff · Accepted Answer · 2015-09-19T21:45:00

Don't do range validation with a regex - that's really a code based system, while Regexes are text processors. You can do it, but it really is rather nasty and complex, and it's a real PITA to maintain if you need changes.
Do you primary validation with a Regex by all means to ensure that the value entered is all numeric and has the right number of digits - that's trivial - but do the actual value checking by converting the strings to numbers and checking them in your C# code. It's quicker, easier to understand, and a lot simpler to maintain in future.

Personally? I'd ignore the regex completely and use int.TryParse to convert the value. Then I'd range check it if it's a valid number.