I’m working on a page that has 7 dropdownlists. When we direct a user to this page, all or some of these DDL’s are displayed to the user depending on their profiles.
The data for all these DDL’s comes from one DataSet.
My problem is as follows.

I want to add a repeater to the page and add 1 or more DDL’s dynamically to it depending on what we want to display.
For example user1 might need only the 3rd and 5th DDL’s. user2 might need all 7 DDL’s. user3 might not be able to view any dropdown lists at all.

Also user1 might have 3 options in DDL3 and 5 options in DDL5 . user 3 can have 6 options in DDL3 and 2 options in DDL5.
I mean the same DDL’s can have different options for different users.

So can anyone suggest how I can add dropdown lists dynamically to a repeater.

Thanks in advance for your help.

You could load all of the DDL's everytime and depending which ones you wanted to show you could always set the visible property to True or False.

DDL_1.Visible = False

Thanks for your help. Your solution works in the current situation.

but we have about 90 different object classes which fill the drop down lists.

i have to provide a solution where more number of DDL's could also be generated upon request.

in short, the number of DDL's and the number of options in each DDL, both vary from user to user.

i'd appreciate it if you could suggest some way for me to solve this. moreover i'm still new to ASP.Net.

How do you know which DDL's you want to show? I understand your problem a little better now but from what I know its looking like there might be a better solution altogether.

So you not only want to show or hide specific DDL's but you also want to populate the DDL's content dependent on some input from the user? So I'm a little bit confused about what exactly you're trying to do. I'm wondering why the DDL's need to be in a repeater. Cause if you have only 7 DDL's you could have subs that populate them. If you didn't want to display DDL - 1 you could "IF" the sub to populate it and make it invisible. For the case of the change content you just need to alter the queries to reflect the values you need for the specific user and show those DDL's as visible.