Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

I am adding regular expressions dynamically. I have to write the validation expression in code behind. But when i add the expression, it says, invalid escape sequence. What can i do??

Posted on 2009-04-03
6
Medium Priority
?
193 Views
Last Modified: 2012-05-06
I am adding regular expressions dynamically. I have to write the validation expression in code behind. But when i add the expression, it says, invalid escape sequence. What can i do??
0
Comment
Question by:pinky1307
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
6 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 24057429
what expression do you write?
0
 

Author Comment

by:pinky1307
ID: 24057435
"^[+-]?\d+(\.\d+)?$"
0
 

Author Comment

by:pinky1307
ID: 24057438
Thanks for the reply. for integer or float values and for integer or decimal values. it takes "." and "\" as escape sequences
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:pinky1307
ID: 24057447
RegularExpressionValidator rv = new RegularExpressionValidator();
                                rv.ID = rev;
                                rv.ControlToValidate = tb.ID;
                                rv.ErrorMessage = "Must be an integer ";
                                rv.Text = "*";
                                rv.ValidationExpression = ("^[+-]?\d+(\.\d+)?$");

this is the code i use.
0
 
LVL 84

Accepted Solution

by:
ozo earned 2000 total points
ID: 24057556
you may need to use "\\" to pass a literal \ in ""
0
 

Author Comment

by:pinky1307
ID: 24057564
Thank you.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In .NET 2.0, Microsoft introduced the Web Site.  This was the default way to create a web Project in Visual Studio 2005.  In Visual Studio 2008, the Web Application has been restored as the default web Project in Visual Studio/.NET 3.x The Web Si…
User art_snob (http://www.experts-exchange.com/M_6114203.html) encountered strange behavior of Android Web browser on his Mobile Web site. It took a while to find the true cause. It happens so, that the Android Web browser (at least up to OS ver. 2.…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

604 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question