regular expression in asp.net

Question

in my application i have a text box in that '123456789v' first 9 charecter must be digits after that any character or a particular character how can i write please help me. thank u

Answer 1

Somthing like: [0-9]{9}.

Or if the last character must be an alpha character: [0-9]{9}[a-z]

If you are new to regular expression I sujest you get your hands on a tool to help you with them. I personaly like this Expresso: http://www.ultrapico.com/Expresso.htm but you can also google for a "regex designer" as there a number of good ones online.

Answer 2

Perhaps something like this may help.

^[0-9]{9}.

EDIT: Removed escape characters.

Answer 3

How about: \d{9}.

Edit: Explained the regex:

\d = Any digit
{9} = 9 times
. = Any character

Answer 4

I'd say

^\d{9}[A-Za-z]$

To match 9 digits and one alphabetic character, and nothing before or after.

Answer 5

If the last character must be a alphabet:

^[0-9]{9}[a-zA-Z]$

If the last character can be anything other than a number

^[0-9]{9}[^0-9]$

Answer 6

Regex r = new Regex("[0-9]{9}[a-zA-Z]$");
label1.Text = r.IsMatch(textBox1.Text).ToString();

If specific character then:

[0-9]{9}v$