DropDownList-Items are null on postback

Question

I have DropDownList that I have to populate in an event associated with a click event of another control.. the data is populated and present but when I select a value and postba

Answer 1

When are you databinding the GridView which is the container of the DropDownList? Do you have wrapped it in a if(!IsPostBack)-check? When you databind the GridView the child controls are always "resetted".

If you use a declarative databound control like ObjectDataSource you should avoid this.databind() if it's not necessary.