Solved

first character of the textbox should not special character in RegularExpressionValidator

Posted on 2014-03-12
4
348 Views
Last Modified: 2014-03-12
First character of the textbox should not special character, what code I have to write  in ValidationExpression= "  " of  RegularExpressionValidator
0
Comment
Question by:Tapan Pattanaik
[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
  • 2
  • 2
4 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 39923261
Try:
'/^[a-zA-Z0-9].*$/'

Open in new window

0
 
LVL 21

Author Comment

by:Tapan Pattanaik
ID: 39923283
It is not working. Please check the code.

VALID: Test VALID: Hello123
 VALID: 456 Hi
 VALID: 456-789
 VALID: Hi-777
 VALID: 333-Hi
 VALID: Hello-There
 VALID: What's Up
 VALID: Hello#Goodbye
 
INVALID: -Hello
INVALID: &Goodbye


                                            <asp:RequiredFieldValidator ID="refName" runat="server" ErrorMessage="Enter Name"
                                                ControlToValidate="txtName" Display="Dynamic" CssClass="valMsg"></asp:RequiredFieldValidator><asp:RegularExpressionValidator
                                                    ID="revtxtName" runat="server" ErrorMessage="Invalid Name" ControlToValidate="txtName"
                                                    Display="Dynamic" ValidationExpression="/^[a-zA-Z0-9].*$/" CssClass="valMsg"></asp:RegularExpressionValidator>

Open in new window

0
 
LVL 52

Accepted Solution

by:
Carl Tawn earned 500 total points
ID: 39923372
OK, try it as:
^[A-Za-z0-9].*

Open in new window

0
 
LVL 21

Author Closing Comment

by:Tapan Pattanaik
ID: 39923531
100% working. Thank You so much.
0

Featured Post

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

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

This article discusses the difference between strict equality operator and equality operator in JavaScript. The Need: Because JavaScript performs an implicit type conversion when performing comparisons, we have to take this into account when wri…
This article discusses how to create an extensible mechanism for linked drop downs.
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…
Suggested Courses

615 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