<com:TContent ID="Content"> <h1>TActiveDropDownList PromptValue Test</h1> <com:TActiveDropDownList id="ddl1" PromptValue="PromptValue" PromptText="PromptText"> <com:TListItem Value="value 1" Text="item 1" /> <com:TListItem Value="value 2" Text="item 2" /> <com:TListItem Value="value 3" Text="item 3" /> <com:TListItem Value="value 4" Text="item 4" /> </com:TActiveDropDownList> <com:TActiveButton id="btn1" OnCallback="buttonClickCallback" /> </com:TContent>