Solved

CheckBoxList Server Side Validation

Posted on 2013-01-14
4
370 Views
Last Modified: 2013-01-22
Hello Experts,

I have a CheckBoxList control that retrieves data from my DB (works fine). But I need to make sure a user selects at least one value from the CheckBoxList before he/she can submit the form. If he/she does not select at least one value then I want to display a message saying "Please select at least one value".

Thanks in advance!!!
0
Comment
Question by:asp_net2
[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
4 Comments
 
LVL 20

Expert Comment

by:informaniac
ID: 38775353
0
 
LVL 4

Author Comment

by:asp_net2
ID: 38775512
I already have a Javascript/jQuery solution. I need a Server Side solution. Thank  you for your help though.
0
 
LVL 21

Accepted Solution

by:
masterpass earned 250 total points
ID: 38776138
you can use a customvalidator and then check onservervalidate event. Below is an example

http://briancaos.wordpress.com/2012/08/16/validate-aspcheckboxlist-with-aspcustomvalidator/

hope this helps.
0
 
LVL 20

Assisted Solution

by:informaniac
informaniac earned 250 total points
ID: 38779195
Is it something like this you are looking for?
bool itemSelected = false;
            foreach (ListItem item in chk1.Items)
            {
                if (item.Selected)
                {
                    itemSelected = true;
                    break;
                }
            }
            if (!itemSelected)
            {
                // Write code for alert message here
            }

Open in new window

0

Featured Post

Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

Question has a verified solution.

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

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

752 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