I have two radDropDownLists. The contents of the second list change based on the item selected in the first list. When an item is selected in the first list, select the down arrow for the second list, and you see list2 for the item selected in list1. Select another item in list1, and the program changes the items in list2. When you select the down arrow for list2, you see the previous list items flash before the list is updated with list items that correspond to the selection in list1. You can see this demonstrated in Telerik's Demo Application - UI for WinForms. Select DropDown & List and then select First Look. In this example, you select an artist in list1 and the artist's albums are listed in list2. Select artist1 and see artist1's albums in list2. Select artist2 and briefly see artist1's albums flash in list2 and then see artist2's albums. Is there a way to get the list to update before it is displayed so there is not flashing of the previous list?