[asp.net] 设置与获取CheckBoxList多选的值

出处：http://www.cnblogs.com/greatverve/archive/2009/12/11/1621696.html

View Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SetGetCheckBoxList.aspx.cs" Inherits="SetGetCheckBoxList" %>
<!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>如何设置与获取CheckBoxList多选的值。</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:CheckBoxList ID="chkList" runat="server">
            <asp:ListItem Value="0">zero</asp:ListItem>
            <asp:ListItem Value="1">one</asp:ListItem>
            <asp:ListItem Value="2">two</asp:ListItem>
        </asp:CheckBoxList>
        <asp:Button ID="btnSet" runat="server" Text="Set" OnClick="btnSet_Click" />
        <asp:Button ID="btnGet" runat="server" Text="Get" OnClick="btnGet_Click" />
    </div>
    </form>
</body>
</html>

View Code

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 SetGetCheckBoxList : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnSet_Click(object sender, EventArgs e)
    {
        foreach (ListItem li in chkList.Items)
        {
            if (li.Value == "0")
            {
                li.Selected = true;
                continue;
            }
            if (li.Value == "1")
            {
                li.Selected = true;
                continue;
            }
        }
    }
    protected void btnGet_Click(object sender, EventArgs e)
    {
        string chkSelect = "";
        for (int i = 0; i < chkList.Items.Count; i++)
        {
            if (chkList.Items[i].Selected == true)
                chkSelect += chkList.Items[i].Value + ",";
        }
        if (chkSelect != "")
            chkSelect = chkSelect.Substring(0, chkSelect.Length - 1);
        else
            chkSelect = "空";
        Response.Write("<script>alert('选中的值为：" + chkSelect + "')</script>");
    }
}

个人写法：

View Code

            热卖商品/推荐商品：<asp:CheckBoxList ID="cbFlag" runat="server">
                            <asp:ListItem Text="热卖商品" Value="h"></asp:ListItem>
                            <asp:ListItem Text="推荐商品" Value ="t"></asp:ListItem>
                       </asp:CheckBoxList>

保存写入：

View Code

string str="";
            for (int i = 0; i < cbFlag.Items.Count; i++)
            {
                if (cbFlag.Items[i].Selected)
                {
                    str += cbFlag.Items[i].Value + ",";
                }
            }

            pd.Flag = str;

读取显示：

View Code

            string[] str= pd.Flag.Split(',');

            foreach (ListItem li in cbFlag.Items)
            {
                for (int i = 0; i < str.Length; i++)
                {
                    if (str[i].ToString() == "h")
                    {
                        li.Selected = true;
                    }
                    if (str[i] == "t")
                    {
                        li.Selected = true;
                    }
                }//for end
            }