populate a multi level dropdown list using c# .net 3.5

Question

2.00/5 (5 votes)

See more:

hi!
i want to populate a multi level dropdown list i.e
Drinks
__SoftDrinks
____SoftDrinks1
____SoftDrinks2
__OtherDrinks
Foods
__Fast Food
____Burger
____Pizza

Could anybody help me out.
Thanks

Posted 26-Apr-11 0:31am

Hi Rajnish

Add a Solution

Comments

Rob Branaghan 26-Apr-11 6:37am

Perhaps you may have to create a user control for this?

Ankit Rajput 26-Apr-11 7:03am

I think there is no functionality in .Net Framework
You have to create your own control.

Ankur^\m/ 27-Apr-11 0:21am

The question seems fine to me and doesn't deserve 1 vote. My 5 to counter the vote!

3 solutions

Solution 1

I think you can work around this using different indentation based on the category.
You can do this either at the database level or in the front end. Just add proper white-spaces before each item based on the category. Whenever you need the Text/SelectedText of the dropdownlist, get the value, use Trim function and then use it.

Hope this helps!

Posted 26-Apr-11 1:18am

Ankur^\m/

Comments

Sergey Alexandrovich Kryukov 26-Apr-11 16:37pm

Why? This is tree...
--SA

Ankur^\m/ 27-Apr-11 0:17am

This looks like tree and can be easily implemented using a TreeView Control. But as per my understanding of the question, the OP wants a similar functionality in a Dropdownlist.

Sergey Alexandrovich Kryukov 27-Apr-11 0:28am

That's my point -- not always to do what OP "wants". There is a big difference between "wants" and "thinks she/he wants". In some cases it is obvious.
--SA

Ankur^\m/ 27-Apr-11 0:36am

You mean my interpretation of the question is wrong or the OP's understanding of the scenario is wrong?

Ankur^\m/ 27-Apr-11 0:57am

I asked this because I feel it's perfectly alright to think of such kind of UI. Indented values in a DDL gives a better understanding of the values to a user.
http://www.codeproject.com/KB/tree/dropdowntree.aspx - this link given by Sandeep talks about the same thing.

Sergey Alexandrovich Kryukov 27-Apr-11 1:14am

I think what is conceptually a tree should be presented as a tree. You know such term: "technosphere"? -- like an ecological system in technical culture. This is expected and adequate. I'm the first one who would welcome re-inventing the wheel, but not this kind.
--SA

Ankur^\m/ 27-Apr-11 1:24am

Well in that case, the whole DDL concept implemented by OP is wrong here. A DDL contains one type of value for ex - categories. The sub-categories goes in different DDLs.

And thanks for telling me about technosphere. I didn't know it.

Sergey Alexandrovich Kryukov 27-Apr-11 1:36am

Oh, I can believe that! Invalid or inadequate mapping of the data concept/model onto graphics happens...
--SA

Ankur^\m/ 27-Apr-11 1:26am

And please don't get me wrong. I like arguing because it gets best out of me and makes me learn a lot.

Sergey Alexandrovich Kryukov 27-Apr-11 1:33am

What is not an issue is getting your wrong -- I don't get you wrong here.
I generally appreciate productive arguments. This is a valuable part of every... bla-bla-sphere. :-)

Thank you.
--SA

Ankur^\m/ 27-Apr-11 1:38am

Thanks! :)

Solution 3

http://www.clientsideasp.net/2009/03/27/aspnet-tree-dropdownlist-listbox/[^]

Here is another link might help.

Posted 27-Apr-11 9:33am

Monjurul Habib

Comments

Sandeep Mewara 28-Apr-11 0:28am

My 5 if OP looking for ASP.NET thing

Monjurul Habib 28-Apr-11 12:00pm

thank you.

Add a Solution

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sandeep Mewara · Accepted Answer · 2011-04-26T01:30:00

Solution 2

Have a look at this article if it helps:
DropDown TreeView Control[^]
A TreeView Control with ComboBox Dropdown Nodes[^]

Posted 26-Apr-11 1:30am

Sandeep Mewara

Comments

Sergey Alexandrovich Kryukov 26-Apr-11 16:37pm

Multi-level list means "tree" and nothing else!
A 5.
--SA

Sandeep Mewara 27-Apr-11 0:20am

Thanks SA.

Monjurul Habib 27-Apr-11 15:33pm

nice links.my 5.

Sandeep Mewara 28-Apr-11 0:27am

Thanks.

populate a multi level dropdown list using c# .net 3.5

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0

populate a multi level dropdown list using c# .net 3.5

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0

Existing Members

...or Join us