regular expression validation

Question

4.00/5 (2 votes)

See more:

I am facing a problem in validation of id card number. Here it is sample
03483-6890375-7 means firstly 5 digit then - then again 7 digits - and at the end again 1 digit.
Please help me... so if someone enters the wrong number in the textbox, then it should show the message "sorry enter valid no."

Posted 19-Jun-11 8:57am

sunnyaliraza

Updated 19-Jun-11 15:48pm

Deeksha Shenoy

v3

Add a Solution

5 solutions

Solution 5

If you learn regular expression things then it will be easy for you here after.

http://www.regular-expressions.info/[^] - Which contains tutorials, tools, examples, books & references.

http://www.regxlib.com/[^] - Massive library contains many examples

Posted 19-Jun-11 17:47pm

thatraja

Comments

Kim Togo 20-Jun-11 2:39am

Good answer my 5.
OP: Download this little tool: http://www.ultrapico.com/Expresso.htm

thatraja 20-Jun-11 3:01am

Yeah, Also I found that in Free Tools forum, check it for more softwares. Thanks Kim.

Solution 6

If you are using Asp.net Validation Controls, then use the RegularExpressionValidator so that the validation can be done on the single click on same time.

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="RegularExpressionValidator" ControlToValidate="TextBox1" ValidationExpression="\d{5}-\d{7}-\d{1}"> </asp:RegularExpressionValidator>

Posted 19-Jun-11 20:50pm

nit_singh

Solution 7

Hope Validation with Regular Expressions Made Simple[^] article from CP might help you.

Posted 19-Jun-11 21:05pm

Ramalinga Koushik

Solution 4

Read this The 30 Minute Regex Tutorial[^].
It helps, really.

Posted 19-Jun-11 16:21pm

Firo Atrum Ventus

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rajitha Wimalasooriya · Accepted Answer · 2011-06-19T09:22:00

Solution 1

The regular expression to use is \d{5}-\d{7}-\d{1}

You can use the Regex class in the System.Text.RegularExpressions to check whether your text matches the regular expression.

System.Text.RegularExpressions.Regex.IsMatch("Your Text", @"\d{5}-\d{7}-\d{1}", System.Text.RegularExpressions.RegexOptions.IgnoreCase)

Posted 19-Jun-11 9:22am

Rajitha Wimalasooriya

Comments

Monjurul Habib 19-Jun-11 19:00pm

nice answer. my 5. please look at my one.

sunnyaliraza 20-Jun-11 0:50am

thanks g i think its looking pretty well but i have another problem because i m begnner and do not know where to use it mean on button coding or in the textbox event please help me.......i am using a text box for number......so what should i do regarding this??