GridView中妙用LinkButton
分类： asp.net
2007-06-13 18:58 2167人阅读 评论(2) 收藏 举报
说明：近来看到不少人想在DataGrid、GridView 使用比较灵活的方式来编辑、查看、删除其中的数据选项（当然它们本身也内置了这些功能），却苦于找不到比较好的办法，本人结合实际代码说明一下如何使用LinkButton来实现上述功能。
--------------------------------------------GridViewLinkButton.aspx---------------------------------------------------------------
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewLinkButton.aspx.cs" Inherits="GridViewLinkButton" %>
<!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 runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="gvPersonList" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="Id" HeaderText="编号" />
<asp:BoundField DataField="Name" HeaderText="姓名" />
<asp:TemplateField HeaderText="性别">
<ItemTemplate>
<%# Eval("Sex").ToString()=="true"?"男":"女" %>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Age" HeaderText="年龄" />
<asp:TemplateField HeaderText="婚否">
<ItemTemplate>
<%# Boolean.Parse(Eval("Married").ToString())==true?"是":"否" %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="婚否">
<ItemTemplate>
<asp:LinkButton CommandArgument='<%# Eval("Id") %>' Enabled='<%# Boolean.Parse(Eval("Married").ToString())==true?false:true %>' Text="设为结婚" runat="server" OnCommand="SetMarried"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
--------------------------------------GridViewLinkButton.aspx.cs------------------------------------------------
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.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class GridViewLinkButton : System.Web.UI.Page
{
private string firstName = "赵钱孙李周吴郑王冯陈诸卫蒋沈韩杨朱秦尤许何吕施张孔曹严华";
private string lastName="猛勇刚强豹彪雁燕蓉菲";
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindGridView();
}
}
private void BindGridView()
{
DataTable myData = CreateDataTable();
Session["MyData"] = myData;
gvPersonList.DataSource = myData;
gvPersonList.DataBind();
}
//手动生成DataTable
private DataTable CreateDataTable()
{
DataTable data = new DataTable();
DataColumn dcId = new DataColumn("ID", typeof(Int32));
dcId.AutoIncrement = true;
dcId.AutoIncrementSeed = 1;
dcId.AutoIncrementStep = 1;
data.Columns.Add(dcId);
data.Columns.Add(new DataColumn("Name",typeof(string)));
data.Columns.Add(new DataColumn("Age",typeof(int)));
data.Columns.Add(new DataColumn("Sex",typeof(bool)));
data.Columns.Add(new DataColumn("Married",typeof(bool)));
DataRow dataRow = null;
Random random = new Random();
for (int i = 0; i < 20; i++)
{
dataRow = data.NewRow();
//随机生成姓名
dataRow["Name"] = firstName.Substring(random.Next(firstName.Length), 1) + lastName.Substring(random.Next(lastName.Length), 1);
//随即生成介于20至100之间的年龄
int age = random.Next(20, 100);
dataRow["Age"] = age;
//随即设置性别
bool sex = (random.Next(100) % 2 == 0) ? true : false;
dataRow["Sex"] = sex;
if (((sex == true) && (age >= 22)) || ((sex == false) && (age >= 20)))//男性结婚年龄大于22周岁，女性结婚年龄大于20周岁
{
dataRow["Married"] = (random.Next(500) % 2 == 0) ? true : false;
}
else
{
dataRow["Married"] = false;
}
data.Rows.Add(dataRow);
}
return data;
}
//LinkButton的OnCommand事件的处理方法
public void SetMarried(Object sender, CommandEventArgs e)
{
e.CommandArgument.ToString();
DataTable data = Session["MyData"] as DataTable;
for (int i = 0; i < data.Rows.Count; i++)
{
if (data.Rows[i]["Id"].ToString() == e.CommandArgument.ToString())
{
data.Rows[i]["Married"] = true;
break;
}
}
gvPersonList.DataSource = data;
gvPersonList.DataBind();
}
}
-----------------------------------运行结果-----------------------------------------------------------------
可以看见，一旦某个人是已婚，则不能再设置为已婚状态了。
下图是将某些未婚人士设置成已婚后的截图。