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  • DragPanel控件

    功能:
        通过DragPanel的属性设置,可以让任何的ASP.NET Pane控件具备可拖拽的功能。

    属性:    

    属性

    描述

    TargetControlID

    要实现拖放功能的目标Panel ID

    DragHandleID

    拖动处理Panel ID,当用户单击并拖动它的时候,目标控件将随着一起移动。


    代码实例:     
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        
    <title>DragPanel</title>    
    </head>

    <body>
        
    <form id="form1" runat="server">
        
    <asp:ScriptManager ID="ScriptManager1" runat="server">
        
    </asp:ScriptManager>
        
    <asp:Panel ID="PanelContent" runat="server"  Width="530px" BorderStyle="Ridge" BorderWidth="5px">
        
    <asp:Panel ID="PanelHeader" runat="server" Height="30px"
                     BackColor
    ="#8080FF"
                     BorderColor
    ="#0808FF"
                     BorderWidth
    ="5px"
                     BorderStyle
    ="Double"
                     HorizontalAlign
    ="Center"
                     ToolTip
    ="请拖曳此处"
                     style
    ="cursor: move;">
            
    <div style="padding-top: 8px; color: White; font-weight: bolder;">
              图书详细信息
         
    </div>
         
        
    </asp:Panel>
        
    <asp:Panel ID="PanelBody" runat="server">
             
    <table width="530px">
                  
    <tr>
                    
    <td >
                      ISBN:
                    
    </td>
                    
    <td>
                      790061493
                    
    </td>
                    
    <td rowspan="5" align="right">
                      
    <asp:Image ID="Image1" runat="server"
                                 ImageUrl
    ="~/Images/imageMFC.gif" />
                    
    </td>
                  
    </tr>
                  
    <tr>
                    
    <td >
                      图书名称:
                    
    </td>
                    
    <td>
                      深入浅出MFC(第2版)(附盘)
                    
    </td>
                  
    </tr>
                  
    <tr>
                    
    <td >
                      作者:
                    
    </td>
                    
    <td>
                     侯俊杰(侯捷)
                    
    </td>
                  
    </tr>
                  
    <tr>
                    
    <td >
                      出版社:
                    
    </td>
                    
    <td>
                     华中理工大学出版社
                    
    </td>
                  
    </tr>
                  
    <tr>
                    
    <td >
                      定价:
                    
    </td>
                    
    <td>
                     80.0
                    
    </td>
                  
    </tr>
                
    </table>
        
    </asp:Panel>
        
    </asp:Panel>
            
    <ajaxToolkit:DragPanelExtender ID="DragPanelExtender1" runat="server" TargetControlID="PanelContent" DragHandleID="PanelHeader">
            
    </ajaxToolkit:DragPanelExtender>
        
        
    </form>

    </body>
    </html>
        到此你完成此控件已经放置好了。但会遇到一个问题,在拖动的时候,在目标位置固定不下,因此你需要填加如下脚本来使其起作用。
      <script type="text/javascript">
      
    function setBodyHeightToContentHeight()
      
    {
        document.body.style.height 
    = 
          Math.max(document.documentElement.scrollHeight, document.body.scrollHeight)
          
    + "px";
      }

      setBodyHeightToContentHeight();
      $addHandler(window, 
    "resize", setBodyHeightToContentHeight);
      
    </script>
        好了,到此就可以任意拖放了。
     运行结果:
            图1:把pane拖到左上方。
            
        图2:把Pane拖到右上方。
        

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  • 原文地址:https://www.cnblogs.com/abcdwxc/p/945962.html
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