利用GridView顯示主細表並添加刪除、打開、關閉功能(續)

本文是利用GridView顯示主細表並添加打開、關閉功能的擴展。

有網友在論壇上詢問:如何在使用GridView顯示主細表時添加刪除功能?其實,如果單個GridView能夠實現刪除對話,N個GridView嵌套也沒有任何問題。下面就將例子粘貼如下,望各位需要的朋友仔細揣摩一下,道理很簡單的:)

查看例子

aspx :

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  
<title>利用GridView顯示主細表並添加打開、關閉功能</title>
  
<style type="text/css">
  td,div,a 
{font-size:12px}
  
</style>

  
<script type="text/javascript">
  
//<![CDATA[
  function ShowHidden(sid,ev)
  {
    ev 
= ev || window.event;
    
var target = ev.target || ev.srcElement;
    
var oDiv = document.getElementById("div" + sid);
    oDiv.style.display 
= oDiv.style.display == "none"?"block":"none";
    target.innerHTML 
= oDiv.style.display == "none"?"顯示":"隱藏";
  }
  
//]]>
  </script>

</head>
<body>
  
<form id="form1" runat="server">
    
<asp:GridView ID="MasterGridView" runat="server" AutoGenerateColumns="false" Width="780px"
      BorderWidth
="1" OnRowDataBound="MasterGridView_RowDataBound" DataKeyNames="id"
      ShowHeader
="false">
      
<Columns>
        
<asp:TemplateField>
          
<ItemTemplate>
            
<div style="width: 100%; padding: 2px; font-weight: bold; background-color: #DEDEDE;
              float: left"
>
              
<span style="float: left">欄目名稱:<%#Eval("Title"%></span><span style="float: right;
                color: Red; cursor: pointer"
 onclick="ShowHidden('<%#Eval("id") %>',event)">隱藏</span></div>
            
<div style="background-color: #FFF; padding-left: 60px; clear: both" id="div<%#Eval("id") %>">
              
<asp:GridView ID="DetailGridView" runat="server" AutoGenerateColumns="false" ShowHeader="true"
                HorizontalAlign
="left" DataKeyNames="id" AutoGenerateDeleteButton="true" OnRowCommand="DetailGridView_RowCommand"
                OnRowDeleting
="DetailGridView_RowDeleting" Width="720px">
                
<HeaderStyle BackColor="#9999FF" />
                
<Columns>
                  
<asp:TemplateField HeaderText="文章名稱" HeaderStyle-Width="540px">
                    
<ItemTemplate>
                      
<href="/article/<%#Eval("objectGuid") %>/read.aspx">
                        
<%#Eval("Title"%>
                      
</a>[<%Eval("HitCount"%>]
                    
</ItemTemplate>
                  
</asp:TemplateField>
                  
<asp:BoundField HeaderText="發佈日期" DataField="CreateDate" HtmlEncode="false" DataFormatString="{0:yyyy年MM月dd日}"
                    HeaderStyle-Width
="100px" ItemStyle-HorizontalAlign="Center" />
                  
<asp:CommandField DeleteText="刪除" ShowDeleteButton="true" ButtonType="Button" HeaderStyle-Width="40px" />
                
</Columns>
              
</asp:GridView>
            
</div>
          
</ItemTemplate>
        
</asp:TemplateField>
      
</Columns>
    
</asp:GridView>
  
</form>
</body>
</html>

 

C#:

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.OleDb;
using System.Web.UI.HtmlControls;

public partial class Default2 : System.Web.UI.Page
{
  
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|aspxWeb.mdb;Persist Security Info=True";
  OleDbConnection cn1;


  
protected void Page_Load( object sender, EventArgs e )
  {
    
if (!Page.IsPostBack)
    {
      OleDbConnection cn 
= new OleDbConnection(ConnectionString);
      cn.Open();
      cn1 
= new OleDbConnection(ConnectionString);
      cn1.Open();
      OleDbCommand cmd 
= new OleDbCommand("select * from [Subject]", cn);
      OleDbDataReader dr 
= cmd.ExecuteReader(CommandBehavior.CloseConnection);
      MasterGridView.DataSource 
= dr;
      MasterGridView.DataBind();
      dr.Close();
      cmd.Dispose();
      cn.Dispose();
      cn1.Dispose();
      cn 
= cn1 = null;
    }
  }
  
protected void MasterGridView_RowDataBound( object sender, GridViewRowEventArgs e )
  {
    
if (e.Row.RowType == DataControlRowType.DataRow)
    {

      GridView oGridView 
= (GridView)e.Row.FindControl("DetailGridView");
      
if (oGridView != null)
      {
        OleDbCommand cmd 
= new OleDbCommand("select top 10 * from Document Where pid = " + MasterGridView.DataKeys[e.Row.RowIndex].Value, cn1);
        OleDbDataReader dr1 
= cmd.ExecuteReader();
        oGridView.DataSource 
= dr1;
        oGridView.DataBind();
        dr1.Close();
        cmd.Dispose();
      }
    }
  }

  
protected void DetailGridView_RowDeleting( object sender, GridViewDeleteEventArgs e )
  {
    GridView a 
= (GridView)sender;
    Response.Write(
"您要刪除的記錄是:<font color='red'>" + a.DataKeys[e.RowIndex].Value.ToString() + "</font>&nbsp;&nbsp;&nbsp;&nbsp;TODO:執行刪除動作");
    
// TODO:執行刪除動作
  }
  
protected void DetailGridView_RowCommand( object sender, GridViewCommandEventArgs e )
  {

  }
}

注意:EnableViewState="true" 是必須的。


 
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