.net 2.0中GridView無限級嵌套的實現

下面我就以三層嵌套說明一下!(無限級可在此基礎上比葫蘆畫瓢)
    首先您要是對數據加載和事件的觸發以及他們的順序不太清楚的,請參考:
    http://overred.cnblogs.com/archive/2006/02/23/336462.html

++++++++++.aspx代碼++++++++++++++++
OnRowDataBound事件,與1.x中的ItemDataBound有一腿.
 <!--第一層GridView開始-->
    <asp:GridView ID="GridView1"  OnRowDataBound="GridView1_RowDataBound"  AutoGenerateColumns=false runat="server">
      <Columns>
        <asp:TemplateField>
        <ItemTemplate> 
           <%#Container.DataItem.ToString()%>
               <!--第二層GridView開始-->
               <asp:GridView ID="GridView2" OnRowDataBound="GridView2_RowDataBound"   AutoGenerateColumns=false runat="server">          
                 <Columns>
                  <asp:TemplateField>
                  <ItemTemplate> 
                      <%#Container.DataItem.ToString()%>
                       
<!--第三層GridView開始-->
                      <asp:GridView ID="GridView3"  AutoGenerateColumns=false runat=server>
                           <Columns>
                             <asp:TemplateField>
                             <ItemTemplate> 
                              <%#Container.DataItem.ToString()%>
                             </ItemTemplate>
                             </asp:TemplateField>                    
                           </Columns>
                        </asp:GridView>
                       
<!--第三層GridView 結束-->
                       
                   </ItemTemplate>
                  </asp:TemplateField>
                 </Columns>
                </asp:GridView>
              <!--第二層GridView結束-->
              
          </ItemTemplate>
          </asp:TemplateField>
         </Columns>
        </asp:GridView>
         <!--第一層GridView結束-->

++++++++++.cs代碼++++++++++++++++
RowDataBound與1.x中的ItemDataBound也有一腿!
using System;
using
 System.Data;
using
 System.Configuration;
using
 System.Web;
using
 System.Web.Security;
using
 System.Web.UI;
using
 System.Web.UI.WebControls;
using
 System.Web.UI.WebControls.WebParts;
using
 System.Web.UI.HtmlControls;
using
 System.Collections;

public partial class
 _Default : System.Web.UI.Page 
{
    
protected void Page_Load(object
 sender, EventArgs e)
    {
        
this.GridView1.DataSource = Al("GridView1Item:"
);
        
this
.GridView1.DataBind();
    }

    
//DataSource

    protected ArrayList Al(string GetStr)
    {
        ArrayList al 
= new
 ArrayList();
        
for(int i=0;i<2;i++
)
        {
            al.Add(GetStr
+
i.ToString());
        }

        
return
 al;
    }


    
//GridView1_RowDataBound

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        
if (e.Row.RowType ==
 DataControlRowType.DataRow)
        {
            GridView gv 
= (GridView)e.Row.FindControl("GridView2"
);
            gv.DataSource 
= Al("GridView2Item:"
);
            gv.DataBind();
            
        }
    }

    
//GridView2_RowDataBound

    protected void GridView2_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        
if (e.Row.RowType ==
 DataControlRowType.DataRow)
        {
            GridView gv 
= (GridView)e.Row.FindControl("GridView3"
);
            gv.DataSource 
= Al("GridView3Item:"
);
            gv.DataBind();

        }
    }
}

 
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