DataList.ItemDataBound 事件 

<%@ Page Language="C#" AutoEventWireup="True" %>  
<%@ Import Namespace="System.Data" %>  
   
<html>  
   <mce:script runat="server"><!--  
   
      ICollection CreateDataSource()   
      {  
        
         // Create sample data for the DataList control.  
         DataTable dt = new DataTable();  
         DataRow dr;  
   
         // Define the columns of the table.  
         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));  
         dt.Columns.Add(new DataColumn("StringValue", typeof(String)));  
         dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));  
   
         // Populate the table with sample values.  
         for (int i = 0; i < 9; i++)   
         {  
            dr = dt.NewRow();  
   
            dr[0] = i;  
            dr[1] = "Description for item " + i.ToString();  
            dr[2] = 1.23 * (i + 1);  
   
            dt.Rows.Add(dr);  
         }  
   
         DataView dv = new DataView(dt);  
         return dv;  
  
      }  
   
   
      void Page_Load(Object sender, EventArgs e)   
      {  
  
         // Manually register the event-handling method for the   
         // ItemCommand event.  
         ItemsList.ItemDataBound +=   
             new DataListItemEventHandler(this.Item_Bound);  
  
         // Load sample data only once, when the page is first loaded.  
         if (!IsPostBack)   
         {  
            ItemsList.DataSource = CreateDataSource();  
            ItemsList.DataBind();  
         }  
  
      }  
  
      void Item_Bound(Object sender, DataListItemEventArgs e)  
      {  
  
         if (e.Item.ItemType == ListItemType.Item ||   
             e.Item.ItemType == ListItemType.AlternatingItem)  
         {  
  
            // Retrieve the Label control in the current DataListItem.  
            Label PriceLabel = (Label)e.Item.FindControl("PriceLabel");  
  
            // Retrieve the text of the CurrencyColumn from the DataListItem  
            // and convert the value to a Double.  
            Double Price = Convert.ToDouble(  
                ((DataRowView)e.Item.DataItem).Row.ItemArray[2].ToString());  
  
            // Format the value as currency and redisplay it in the DataList.  
            PriceLabel.Text = Price.ToString("c");  
  
         }  
  
      }  
   
     
// --></mce:script>  
   
<body>  
   
   <form runat=server>  
  
      <h3>DataList ItemDataBound Example</h3>  
   
      <asp:DataList id="ItemsList"  
           BorderColor="black"  
           CellPadding="5"  
           CellSpacing="5"  
           RepeatDirection="Vertical"  
           RepeatLayout="Table"  
           RepeatColumns="3"  
           ShowBorder="True"  
           runat="server">  
  
         <HeaderStyle BackColor="#aaaadd">  
         </HeaderStyle>  
  
         <AlternatingItemStyle BackColor="Gainsboro">  
         </AlternatingItemStyle>  
  
         <HeaderTemplate>  
  
            List of items  
  
         </HeaderTemplate>  
                 
         <ItemTemplate>  
  
            Description: <br>  
            <%# DataBinder.Eval(Container.DataItem, "StringValue") %>  
  
            <br>  
  
            Price:   
            <asp:Label id="PriceLabel"  
                 runat="server"/>  
  
         </ItemTemplate>  
   
      </asp:DataList>  
   
   </form>  
   
</body>  
</html>
posted @ 2011-03-30 10:45  北美上映  阅读(336)  评论(0)    收藏  举报