regExpression Help

[jeffery.kabir@gmail.com]

I'm trying to get a regular expression that matches only 4 digits, i'm
using

Regex.IsMatch(u serID, "^\d{4}")

If the user types in more than 4 digits it still is being returned as a
match. Should I be using IsMatch, or is my regular expression wrong?
Thanks.

[nikki]

Re: regExpression Help


jeffery.kabir@g mail.com wrote:[color=blue]
> I'm trying to get a regular expression that matches only 4 digits, i'm
> using
>
> Regex.IsMatch(u serID, "^\d{4}")
>
> If the user types in more than 4 digits it still is being returned as a
> match. Should I be using IsMatch, or is my regular expression wrong?
> Thanks.[/color]

Try
Regex.IsMatch(u serID, "^\d{4}$")

[Siva M]

Re: regExpression Help

Try "^\d{4}$"

<jeffery.kabir@ gmail.com> wrote in message
news:1128522035 .392642.31130@g 14g2000cwa.goog legroups.com...
I'm trying to get a regular expression that matches only 4 digits, i'm
using

Regex.IsMatch(u serID, "^\d{4}")

If the user types in more than 4 digits it still is being returned as a
match. Should I be using IsMatch, or is my regular expression wrong?
Thanks.

[jjrdk]

Re: regExpression Help

jeffery.kabir@g mail.com wrote:[color=blue]
> I'm trying to get a regular expression that matches only 4 digits, i'm
> using
>
> Regex.IsMatch(u serID, "^\d{4}")
>
> If the user types in more than 4 digits it still is being returned as a
> match. Should I be using IsMatch, or is my regular expression wrong?
> Thanks.
>[/color]
Try "^\d{4}\z". I think you are forgetting to check for the end of the
string.

jjrdk