DragPanel

DragPanel控件的目的是实现一个可以自由拖动的Panel.

属性列表：
 TargetControlID – 指定可以拖动的面板的ID
 DragHandleID – 指定一个ID，作为拖动面板的标题栏。

实例解析一、创建可拖动的面板实例

    <form >
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>   
    </div>
        <asp:Panel ID="Panel1" runat="server" Height="257px" Width="375px">
            <asp:Panel ID="Panel2" runat="server" Height="38px" Width="397px" BackColor="red">拖动此处
            </asp:Panel>
            <asp:Panel ID="Panel3" runat="server" Height="266px" Width="396px">
                <asp:Button ID="Button1" runat="server" Text="Button" /></asp:Panel>
        </asp:Panel>
        <cc1:DragPanelExtender ID="DragPanelExtender1" runat="server" TargetControlID="Panel1" DragHandleID="Panel2">
        </cc1:DragPanelExtender>
    </form>