REguler Expression for {4digit-1digit-anything} this format

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Hi guys

i need to validate a input that is taken by text box
that entry should be like 4digits the '-' then 1digit '-'then anything else means its would alpha ar numeric but over limit of 15digit

for Example-

"2012-1-no112"

i tried this but not working.......

C#

Regex FilenameRegex = null;
        FilenameRegex = new Regex("^[0-9]{4}-[0-9]{1}-[[0-9a-zA-Z]*]$", RegexOptions.IgnoreCase);
        if (!FilenameRegex.IsMatch(txtFromNo.Text))
        {
            msg.Show("Please Enter with this Format : 2012-1-as121");
            return;
        }

Thanks in advance...

Posted 14-Nov-13 23:42pm

Shubh Agrahari

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2 solutions

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Nicholas Marty · Accepted Answer · 2013-11-14T23:48:00

Solution 1

You have an error in you Regex:
Remove those double square brackets in the last part of your Regex ;)

This should work: ^[0-9]{4}-[0-9]{1}-[0-9a-zA-Z]*$"

Hint: To test your Regex this is a handy site: http://regexpal.com/[^]

Btw. I don't really know what you mean by

Shubh Agrahari wrote:
then anything else means its would alpha ar numeric but over limit of 15digit

Do you want to limit the whole string to max 15 chars. or the last part can be 0-15 chars? or has the last part to be longer longer than 15 chars?

Posted 14-Nov-13 23:48pm

Nicholas Marty

Updated 14-Nov-13 23:49pm

v2

Comments

Shubh Agrahari 15-Nov-13 5:58am

i tried that also(removed []) but still not working and limit can be 0-15 chars

Shubh Agrahari 15-Nov-13 6:01am

thanks..there is a bit mistake now fine

Nicholas Marty 15-Nov-13 6:08am

So if you want to limit the whole string to 15 chars just replace the asterisk "*" with "{0,8}"

Shubh Agrahari 15-Nov-13 7:26am

thanks

♥…ЯҠ…♥ · Accepted Answer · 2013-11-14T23:50:00

Solution 2

Hi Shubh,

Now try this expression ^[0-9]{4}-[0-9]{1}-[0-9a-zA-Z]*$
Now its working sooooper.
You can test it in http://www.rubular.com/

Hope this helps you a bit.

Regards,
RK

Posted 14-Nov-13 23:50pm

♥…ЯҠ…♥

Updated 14-Nov-13 23:53pm

v2

Comments

Shubh Agrahari 15-Nov-13 6:02am

thanks..there is a bit mistake now fine

♥…ЯҠ…♥ 15-Nov-13 6:04am

it happens... because we are human....

Shubh Agrahari 15-Nov-13 7:26am

ya its true

REguler Expression for {4digit-1digit-anything} this format

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REguler Expression for {4digit-1digit-anything} this format

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