在DATALIST中绑定数据自动在每条数据前面生成一个checkbox控件

biaofanwo 2009-04-01 03:26:51

如题
最好给个事例

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阿非 2009-04-01

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<asp:Button ID="btn" Text="获得选择项" runat="server" OnClick="btn_Click" />



protected void btn_Click(object sender, EventArgs e)

    {

        CheckBox cb;

        for (int i = 0; i < dl.Items.Count; i++)

        {

            cb = dl.Items[i].FindControl("cb") as CheckBox;

            if (cb != null && cb.Checked)

            {

                Response.Write("第" + (i + 1).ToString() + "项被选择<br>");

            }

        }

    }

和上面的代码放一起就可以了

biaofanwo 2009-04-01

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那怎么在后台判断checkbox是否被选中了呢

SealedLove 2009-04-01

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把列全部换成模板列
没个模板中拖个checkbox控件绑定数据~ OK

fly_to_sky 2009-04-01

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我顶我楼上的

阿非 2009-04-01

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>



<!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">



       

        <table>

    <asp:DataList ID="dl" runat="server">

    <AlternatingItemTemplate>

    <tr>

        <td><asp:CheckBox ID="cb" runat="server" /></td>

        <td>ID:<%#Eval("ID") %></td>

        <td>Name:<%#Eval("Name") %></td>

    </tr>

    </AlternatingItemTemplate>

    <ItemTemplate>

    <tr>

        <td><asp:CheckBox ID="cb" runat="server" /></td>

        <td>ID:<%#Eval("ID") %></td>

        <td>Name:<%#Eval("Name") %></td>

    </tr>

    </ItemTemplate>    

    </asp:DataList>

    </table>

    </form>

</body>

</html>



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 Default3 : System.Web.UI.Page

{





    private DataTable getDateTable()

    {

        DataTable dt = new DataTable();

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

        dt.Columns.Add(new DataColumn("Name", typeof(String)));

        DataRow dr = dt.NewRow();

        dr[0] = 1;

        dr[1] = "消";

        dt.Rows.Add(dr);

        dr = dt.NewRow();

        dr[0] = 2;

        dr[1] = "里";

        dt.Rows.Add(dr);

        dr = dt.NewRow();

        dr[0] = 3;

        dr[1] = "网";

        dt.Rows.Add(dr);

        dr = dt.NewRow();

        dr[0] = 4;

        dr[1] = "涨";

        dt.Rows.Add(dr);

        dr = dt.NewRow();

        dr[0] = 5;

        dr[1] = "刘";

        dt.Rows.Add(dr);

        return dt;

    }

    

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {



            dl.DataSource = getDateTable();

            dl.DataBind();

        }   





    }









}