• [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 = "";
    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
    }





     

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  • 原文地址:https://www.cnblogs.com/ishibin/p/2364426.html
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