How can I set the action of a dropdownlist according to the action of another dropdownlist?

Question

1.00/5 (1 vote)

See more:

In my work , a particular webform consist two dropdownlist whose IDs are respectively "DepartFrom" and "DepartTo". Each list consist the same text items. Texts are "Dhaka, Chittagong, Sylhet, Cox'sbazar".

Now I want to action as follows :

1. When I select "Dhaka" in "DepartFrom" list it will not appear in the "DepartTo" list, but the others will.
2. When I select 'Text' except 'Dhaka' in 'DepartFrom' list, only 'Dhaka' will appear in the "DepartTo" list.

It will be better for me to get feedback in C#.

Posted 19-Apr-13 10:25am

Sopner Feriwala

Add a Solution

Comments

José Amílcar Casimiro 19-Apr-13 16:28pm

I will help you with c# as soon you make a question.

joshrduncan2012 19-Apr-13 16:29pm

I agree. Also, we need to see what effort has been made on the OP's part first.

1 solution

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)

Aner Bautista · Accepted Answer · 2013-04-19T10:55:00

Hello Sopner Feriwala

I Higly recommend you to take a look at this:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.dropdownlist.aspx

Read about the following events:
SelectedIndexChanged
TextChanged

Instead of basing conditions in Text Item, I recommend you basing on Text Value. Because values remain practically unchanged, however, the text may change frequently.

If you still have any other question, please fell free to ask.

Best Regards.