DataGrid中加入CheckBox,并实现单选

王朝other·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="DataGridCheck.WebForm1" %>

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

<HTML>

<HEAD>

<title>WebForm1</title>

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

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

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

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

<SCRIPT language="JavaScript">

function SetCheckBoxState()

{

var dom=document.all;

var el=event.srcElement;

if(el.tagName=="INPUT"&&el.type.toLowerCase()=="checkbox")

{

for(i=0;i<dom.length;i++)

{

if(dom[i].tagName=="INPUT"&&dom[i].type.toLowerCase()=="checkbox")

{

dom[i].checked=false;

}

}

}

el.checked=!el.checked;

}

</SCRIPT>

</HEAD>

<body MS_POSITIONING="GridLayout">

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

<FONT face="宋体">

<asp:datagrid id="dg" style="Z-INDEX: 101; LEFT: 168px; POSITION: absolute; TOP: 40px" runat="server"

Width="440px" AutoGenerateColumns="False">

<Columns>

<asp:TemplateColumn>

<ItemTemplate>

<asp:CheckBox id="chkExport" runat="server"></asp:CheckBox>

</ItemTemplate>

</asp:TemplateColumn>

<asp:BoundColumn DataField="IntegerValue"></asp:BoundColumn>

<asp:BoundColumn DataField="StringValue"></asp:BoundColumn>

<asp:BoundColumn DataField="CurrencyValue"></asp:BoundColumn>

</Columns>

</asp:datagrid><asp:button id="Button1" style="Z-INDEX: 102; LEFT: 168px; POSITION: absolute; TOP: 8px" runat="server"

Text="显示内容"></asp:button></FONT></form>

</body>

</HTML>

以下是CS文件

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;

namespace DataGridCheck

{

/// <summary>

/// WebForm1 的摘要说明。

/// </summary>

public class WebForm1 : System.Web.UI.Page

{

protected System.Web.UI.WebControls.Button Button1;

protected System.Web.UI.WebControls.DataGrid dg;

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

{

// 在此处放置用户代码以初始化页面

if (!Page.IsPostBack)

{

dg.DataSource= CreateDataSource() ;

dg.DataBind();

}

}

ICollection CreateDataSource()

{

DataTable dt = new DataTable();

DataRow dr;

dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));

dt.Columns.Add(new DataColumn("StringValue", typeof(string)));

dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));

for (int i = 0; i < 9; i++)

{

dr = dt.NewRow();

dr[0] = i;

dr[1] = "Item " + i.ToString();

dr[2] = 1.23 * (i + 1);

dt.Rows.Add(dr);

}

DataView dv = new DataView(dt);

return dv;

}

#region Web 窗体设计器生成的代码

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

//

InitializeComponent();

base.OnInit(e);

}

/// <summary>

/// 设计器支持所需的方法 - 不要使用代码编辑器修改

/// 此方法的内容。

/// </summary>

private void InitializeComponent()

{

this.dg.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dg_ItemDataBound);

this.Button1.Click += new System.EventHandler(this.Button1_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button1_Click(object sender, System.EventArgs e)

{

System.Web.UI.WebControls.CheckBox chkExport;

foreach (DataGridItem dgItem in dg.Items)

{

chkExport=(CheckBox)dgItem.FindControl("chkExport");

if(chkExport.Checked)

{

Response.Write("<script>alert('"+dgItem.Cells[2].Text+"和"+dgItem.Cells[3].Text+"')</script>");

}

}

}

private void dg_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

{

if(e.Item.ItemIndex<0) return;

if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

{

System.Web.UI.WebControls.CheckBox chkExport;

chkExport=(CheckBox)e.Item.FindControl("chkExport");

chkExport.Attributes.Add("OnClick","SetCheckBoxState()");

e.Item.Attributes.Add("onmouseover","currentcolor=this.style.backgroundColor;this.style.backgroundColor='48d1cc'");

e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=currentcolor");

}

}

}

}

 
 
 
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