使用DataList控件的编辑模板

 

前台:

 

<%@ Page language="c#" Inherits="CommonFunction.DataListEditItem" CodeFile="DataListEditItem.aspx.cs" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>DataListEditItem</title>

<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">

<meta name="CODE_LANGUAGE" Content="C#">

<meta name="vs_defaultClientScript" content="JavaScript">

<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">

</HEAD>

<body>

<form id="Form1" method="post" runat="server">

<h2>使用DataList控件的编辑模板</h2>

<asp:DataList id="dlEditItem" style="Z-INDEX: 101; LEFT: 16px; POSITION: absolute; TOP: 48px"

runat="server" Height="136px" DataKeyField="EmployeeID">

<HeaderTemplate>人员信息</HeaderTemplate>             /*头模板*/

<FooterTemplate><hr color="red"></FooterTemplate>     /*底部模板*/

<ItemTemplate>

<asp:Button id="edit" CommandName="edit" Text="编辑" Runat="server"></asp:Button>

<%#DataBinder.Eval(Container.DataItem,"LastName")%><%#DataBinder.Eval(Container.DataItem,"FirstName")%>

</ItemTemplate>

<EditItemTemplate>

<asp:Label id="lastname" Runat="server">

<%#DataBinder.Eval(Container.DataItem,"LastName")%>

</asp:Label>

<asp:Label id="FirstName" Runat="server">

<%#DataBinder.Eval(Container.DataItem,"FirstName")%>

</asp:Label>

<asp:TextBox id=Title runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"Title")%>'>

</asp:TextBox>

<asp:TextBox id=titleOfCourtesy runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"TitleOfCourtesy")%>'>

</asp:TextBox>

<asp:Button id="update" CommandName="update" Text="更新" Runat="server"></asp:Button>

<asp:Button id="cancel" CommandName="cancel" Text="取消" Runat="server"></asp:Button>

</EditItemTemplate>

</asp:DataList>

</form>

</body>

</HTML>

 

效果图:

 

 

 

 

后台:

 

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

using System.Configuration;

namespace CommonFunction

{

///<summary>

/// DataListEditItem 的摘要说明。

///</summary>

public partial class DataListEditItem : System.Web.UI.Page

{

 

protected void Page_Load(object sender, System.EventArgs e)

{

//页面初试化时进行数据绑定

if(!IsPostBack)

DataListDataBind();

}

 

private void DataListDataBind()

{

//定义数据连接对象,其中数据库连接字符串是在Web.Config文件中定义的

SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionSqlServer"].ToString());

//创建数据适配器对象

SqlDataAdapter da = new SqlDataAdapter("select EmployeeID,LastName,FirstName,Title,TitleOfCourtesy from Employees",conn);

//创建DataSet对象

DataSet ds = new DataSet();

try

{

//填充数据集

da.Fill(ds,"testTable");

//进行数据绑定

dlEditItem.DataSource = ds.Tables["testTable"];

dlEditItem.DataBind();

}

catch(Exception error)

{

//输出异常信息

Response.Write(error.ToString());

}

}

 

 

 

private void dlEditItem_CancelCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)

{

//设置DataList控件的编辑项的索引为-1,既取消编辑

dlEditItem.EditItemIndex = -1;

//数据绑定

DataListDataBind();

}

 

private void dlEditItem_EditCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)

{

//设置DataList控件的编辑项的索引为选择的当前项

dlEditItem.EditItemIndex = e.Item.ItemIndex;

//数据绑定

DataListDataBind();

}

 

private void dlEditItem_UpdateCommand(object source, System.Web.UI.WebControls.DataListCommandEventArgs e)

{

//取得编辑行的关键字段的值

int empID = (int)dlEditItem.DataKeys[e.Item.ItemIndex];

//取得文本框中输入的内容

TextBox newTitle = (TextBox)e.Item.FindControl("Title");

TextBox newTitleOfCour = (TextBox)e.Item.FindControl("TitleOfCourtesy");

//定义SQL语句

string sqlCom = "update Employees set Title='"+newTitle.Text+"',TitleOfCourtesy='"+newTitleOfCour.Text+"' where EmployeeID="+empID.ToString();

//定义数据连接对象,其中数据库连接字符串是在Web.Config文件中定义的

SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionSqlServer"].ToString());

//定义命令对象

SqlCommand cmd = new SqlCommand(sqlCom,conn);

//打开数据连接

conn.Open();

try

{

//执行SQL命令

cmd.ExecuteNonQuery();

//取消编辑

dlEditItem.EditItemIndex = -1;

DataListDataBind();

}

catch(Exception err)

{

//输入异常信息

Response.Write(err.ToString());

}

finally

{

//关闭连接对象

conn.Close();

}

}

}

}