多级分类统计列表ListView实现

由于学校火车订票系统需要按学院班级统计票数和钱数。实现如下图所示列表。以下直奔主题。

aspx页面部分代码：

 
 
   

  
    
  
    
  
    代码
  
    
 
     
    
      

     
       
     
        
     
       <
     
       asp:SqlDataSource ID
     
       =
     
       "
     
       SqlDataSource1
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
        
 ConnectionString
     
       =
     
       "
     
       <%$ ConnectionStrings:TrainConnectionString %>
     
       "
     
        
     
       >
     
       
 
     
       </
     
       asp:SqlDataSource
     
       >
     
       
 
     
       <
     
       div style
     
       =
     
       "
     
       color:#4C4847;font-size:16px;margin:0 auto;text-align:center;padding:10px;font-weight:bold;
     
       "
     
       >
     
       

 福州大学火车订票系统
     
       -
     
       订票明细表（
     
       <%=
     
       DateTime.Now.ToShortDateString() 
     
       %>
     
       ）
     
       </
     
       div
     
       >
     
       
 
     
       <
     
       asp:ListView ID
     
       =
     
       "
     
       lsvAcademe
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
        DataSourceID
     
       =
     
       "
     
       SqlDataSource1
     
       "
     
        DataKeyNames
     
       =
     
       "
     
       AcademeID
     
       "
     
        
     
       >
     
       
 
     
       <
     
       EmptyDataTemplate
     
       >
     
       
 
     
       <
     
       div style
     
       =
     
       "
     
       color:red;font-size:16px;margin:0 auto;text-align:center;
     
       "
     
       >
     
       对不起，没有找到您想要的数据！
     
       </
     
       div
     
       >
     
       
 
     
       </
     
       EmptyDataTemplate
     
       >
     
       
 
     
       <
     
       LayoutTemplate
     
       >
     
       
 
     
       <
     
       table 
     
       class
     
       =
     
       "
     
       order-list-table
     
       "
     
       >
     
       
 
     
       <
     
       tr
     
       >
     
       
 
     
       <
     
       th
     
       >
     
       学院
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       票数
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       硬座总价
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       预收总价
     
       </
     
       th
     
       >
     
       
 
     
       <
     
       th
     
       >
     
       班级
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       票数
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       硬座总价
     
       </
     
       th
     
       ><
     
       th
     
       >
     
       预收总价
     
       </
     
       th
     
       >
     
       
 
     
       <
     
       tr
     
       >
     
        
 
     
       <
     
       asp:PlaceHolder ID
     
       =
     
       "
     
       itemPlaceHolder
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
       ></
     
       asp:PlaceHolder
     
       >
     
       
 
     
       <
     
       td colspan
     
       =
     
       "
     
       8
     
       "
     
        style
     
       =
     
       "
     
       height:0;
     
       "
     
       ></
     
       td
     
       >
     
       
 
     
       </
     
       tr
     
       >
     
       
 
     
       </
     
       table
     
       >
     
       
 
     
       </
     
       LayoutTemplate
     
       >
     
       
 
     
       <
     
       ItemTemplate
     
       >
     
       
 
     
       <
     
       td rowspan
     
       =
     
       '
     
       <%# Eval("ClassCount") %>
     
       '
     
        
     
       ><%
     
       # Eval(
     
       "
     
       Academe
     
       "
     
       ) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td rowspan
     
       =
     
       '
     
       <%# Eval("ClassCount") %>
     
       '
     
        
     
       ><%
     
       # Eval(
     
       "
     
       TicketCount
     
       "
     
       ) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td rowspan
     
       =
     
       '
     
       <%# Eval("ClassCount") %>
     
       '
     
        
     
       ><%
     
       # String.Format(
     
       "
     
       {0:0.0}
     
       "
     
       ,Eval(
     
       "
     
       HardseatTotal
     
       "
     
       )) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td rowspan
     
       =
     
       '
     
       <%# Eval("ClassCount") %>
     
       '
     
        
     
       ><%
     
       # String.Format(
     
       "
     
       {0:0.0}
     
       "
     
       ,Eval(
     
       "
     
       AdvanceTotal
     
       "
     
       )) 
     
       %></
     
       td
     
       >
     
        
 
     
       <
     
       uc1:ListViewClass ID
     
       =
     
       "
     
       ListViewClass1
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
        AcademeID
     
       =
     
       '
     
       <%#Eval("AcademeID") %>
     
       '
     
        
     
       />
     
       
 
     
       </
     
       ItemTemplate
     
       >
     
        
 
     
       </
     
       asp:ListView
     
       >
    
      
 
    


 
   



其中我用到了Listview控件的嵌套，但是我将其分离为一个独立的用户控件。
控件的显示代码：





 
   

  
    
  
    
  
    代码
  
    

  
    



  
    
 
     
 
     
 
     
    
      

     
       
     
       <
     
       asp:ListView runat
     
       =
     
       "
     
       server
     
       "
     
        ID
     
       =
     
       "
     
       lsvClass
     
       "
     
        DataSourceID
     
       =
     
       "
     
       SqlDataSource1
     
       "
     
       >
     
       
 
     
       <
     
       LayoutTemplate
     
       >
     
        
 
     
       <
     
       asp:PlaceHolder ID
     
       =
     
       "
     
       itemPlaceHolder
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
       ></
     
       asp:PlaceHolder
     
       >
     
       
 
     
       </
     
       LayoutTemplate
     
       >
     
       
 
     
       <
     
       ItemTemplate
     
       >
     
       
 
     
       <
     
       td
     
       ><%
     
       #Eval(
     
       "
     
       ClassName
     
       "
     
       ) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td
     
       ><%
     
       #Eval(
     
       "
     
       TicketCount
     
       "
     
       ) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td
     
       ><%
     
       #String.Format(
     
       "
     
       {0:0.0}
     
       "
     
       ,Eval(
     
       "
     
       HardSeatTotal
     
       "
     
       )) 
     
       %></
     
       td
     
       >
     
       
 
     
       <
     
       td
     
       ><%
     
       #String.Format(
     
       "
     
       {0:0.0}
     
       "
     
       ,Eval(
     
       "
     
       AdvanceTotal
     
       "
     
       )) 
     
       %></
     
       td
     
       ></
     
       tr
     
       ><
     
       tr
     
       >
     
        
 
     
       </
     
       ItemTemplate
     
       >
     
       

     
       </
     
       asp:ListView
     
       >
     
       


     
       <
     
       asp:SqlDataSource ID
     
       =
     
       "
     
       SqlDataSource1
     
       "
     
        runat
     
       =
     
       "
     
       server
     
       "
     
        
 ConnectionString
     
       =
     
       "
     
       <%$ ConnectionStrings:TrainConnectionString %>
     
       "
     
        
 SelectCommand
     
       =
     
       "
     
       SELECT * FROM [V_DetailOrderListForClass]
     
       "
     
       ></
     
       asp:SqlDataSource
     
       >
    
      
 
    


 
   



控件的cs页面代码：




 
   

  
    
  
    
  
    代码
  
    

  
    



  
    
 
     
 
     
 
     
    
      

     
       
     
       namespace
     
        Website.Controls
{
 
     
       public
     
        
     
       partial
     
        
     
       class
     
        ListViewClass : System.Web.UI.UserControl
 {
 
     
       private
     
        
     
       string
     
        academeID;
 
     
       public
     
        
     
       string
     
        AcademeID
 {
 
     
       set
     
        { academeID 
     
       =
     
        value; }
 }
 
     
       protected
     
        
     
       void
     
        Page_Load(
     
       object
     
        sender, EventArgs e)
 {
 SqlDataSource1.SelectCommand 
     
       =
     
        
     
       "
     
       SELECT * From [V_DetailOrderListForClass] where AcademeID=@AcademeID
     
       "
     
       ;
 SqlDataSource1.SelectParameters.Add(
     
       "
     
       AcademeID
     
       "
     
       ,System.TypeCode.Int32, academeID);
 lsvClass.DataBind();
 }
 }
}
    
      
 
    


 
   



这次火车订票系统的多表之间联合查询非常频繁，有的甚至为了实现某个统计功能，经过查询多个视图（视图再查询视图），我想
这个性能消耗挺大的。