摘要：
1.DropDown Server ReferenceTargetControlID - The ID of the control which needs a drop-down.(ex:Label or TextBox)<补充一点：TargetControl的文本是不能改变的>DropDownControlID - The ID of the control which will be displayed as the dropdown.2.Demo(1)HTML Code 1 <asp:ScriptManager ID="ScriptManager1" 阅读全文