Solved

Required field depends on value of another field

Posted on 2009-06-30
3
235 Views
Last Modified: 2012-05-07
I have a field in a formview which is required only if the user has chosen a certain option from another dropdown on the same form.  For instance, if the user chooses option 1 from the dropdown the second field is required, if they choose option 2 the second field isn't required.

Is there a way to accomplish this with the .net validators or do I have to write some client-side Javascript?

Thanks in advance!
0
Comment
Question by:AX_User
3 Comments
 
LVL 5

Expert Comment

by:rizwanidrees
ID: 24743743
You have to do it with your own script.
0
 
LVL 3

Accepted Solution

by:
tpsl earned 125 total points
ID: 24743745
You will have to write javascript for the same.

Write a javascript onchange event of ddl.

you will not get intellisense for onchange event in html.

in javascript you could use the ValidatorEnable method to enable disable the validator controls.
0
 
LVL 2

Assisted Solution

by:puneetdudeja
puneetdudeja earned 125 total points
ID: 24743835
You can also do it with the .net validators but with the "CustomValidator" validator only.
Use ClientValidationFunction for CustomValidator and set  ControlToValidate to your dropdown containing that values.

In ClientValidation function check the value of your dropdown and it is the value for which the other field is required than set "IsValid" property of argument "e" to false in the ClientValidation function.

ClientValidationFunction(sender,e)
{
     // If drop down value is the one that requires the other field
     // set e.IsValid=false;
}

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

Suggested Solutions

Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

832 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