I have 4 dropdownboxes: DropDown1, 2, 3, and 4. DropDowns 1 through 3 fire an event on SelectedIndexChanged. After I change DropDown1 it is ok and the indexchanged event is fired and goes through all steps properly. But,when I change dropdown3 the indexchange (selecteditem.index number) does NOT change even though I have selected a different item from the drop-down box. Additionally, the indexchanged event for dropdownbox1 is fired when I change dropdownbox3. Is this how supposed to work? Thank you.