2、定义3个Panel，用于实现窗体拖动效果，代码如下：
1
<body>
2 <form id="form1" runat="server">
3 <div>
4 <cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
5 </cc1:ToolkitScriptManager>
6
7 </div>
8 <div style=" 292px; height: 318px">
9 <asp:Panel ID="Panel3" runat="server" Height="50px" Width="125px">
10 <asp:Panel ID="Panel1" runat="server" Height="27px" Width="292px" BackColor="ActiveBorder" BorderWidth="1px">
11 鼠标拖动区域</asp:Panel>
12 <asp:Panel ID="Panel2" runat="server" Height="274px" Width="291px" Style="overflow: scroll" BorderColor="Black" BorderWidth="1px">
13 演示web拖动桌面窗体</asp:Panel>
14 </asp:Panel>
15 </div>
16 <cc1:DragPanelExtender ID="DragPanelExtender1" runat="server" TargetControlID="Panel3">
17 </cc1:DragPanelExtender>
18 </form>
19</body>
并且将DragPanelExtender控件拖至页面中，使其TargetControlID="Panel3"，指定要拖动的区域的Panel，如本例中的Panel3.
<body>2
<form id="form1" runat="server">3
<div>4
<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">5
</cc1:ToolkitScriptManager>6
7
</div>8
<div style=" 292px; height: 318px">9
<asp:Panel ID="Panel3" runat="server" Height="50px" Width="125px">10
<asp:Panel ID="Panel1" runat="server" Height="27px" Width="292px" BackColor="ActiveBorder" BorderWidth="1px">11
鼠标拖动区域</asp:Panel>12
<asp:Panel ID="Panel2" runat="server" Height="274px" Width="291px" Style="overflow: scroll" BorderColor="Black" BorderWidth="1px">13
演示web拖动桌面窗体</asp:Panel>14
</asp:Panel>15
</div>16
<cc1:DragPanelExtender ID="DragPanelExtender1" runat="server" TargetControlID="Panel3">17
</cc1:DragPanelExtender>18
</form>19
</body>