validating minimum 5 digit alpha numeric value

Question

0.00/5 (No votes)

See more:

Hello Friends ,
I have a problem regarding regular expression .I have to validate a user name ,
with following requirements
1. It will accept only alpha numeric value.
2. Starting with a character value.
3. Accepting minimum 5 values.
How can i do it .
Please help me .
Thanks all in advance.

Posted 5-May-11 21:10pm

pawanvats

Updated 5-May-11 21:12pm

Ramalinga Koushik

v2

Add a Solution

2 solutions

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)

Mahendra.p25 · Answer 1 · 2011-05-05T21:37:00

Solution 2

try this

XML

<asp:TextBox ID="TextBox1" MaxLength="5"  runat="server"></asp:TextBox><asp:RegularExpressionValidator
           ID="RegularExpressionValidator1" ControlToValidate="TextBox1" ValidationExpression="^[A-Za-z]\w*" runat="server" ErrorMessage="RegularExpressionValidator"></asp:RegularExpressionValidator>
           <asp:Button ID="btn" Text="Check" runat="server" />

Posted 5-May-11 21:37pm

Mahendra.p25

Comments

pawanvats 6-May-11 4:41am

It Should accept minimum 5 values not maximum

Mahendra.p25 6-May-11 4:49am

try this

ValidationExpression="^[A-Za-z]{5}\w*"

Ramalinga Koushik · Answer 2 · 2011-05-05T21:14:00

Solution 1

Hope this[^] might help you.

Validate it accordingly as per your requirement.

Posted 5-May-11 21:14pm

Ramalinga Koushik

Comments

pawanvats 6-May-11 3:18am

Thanks sir,But MR. Ramalinga it is not validating for minimum 5 character and starting with character value