Listbox的一个用法

来源:互联网 发布:做陶瓷软件 编辑:程序博客网 时间:2024/05/16 15:29

功能:实现选中一个“LIstbox中的内容”,点击“Button”后把内容添加到另外的“Listbox”中

 

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

<!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:ListBox ID="ListBox1" runat="server"></asp:ListBox>
        <asp:ListBox ID="ListBox2" runat="server"></asp:ListBox>
        <asp:Button ID="Button1" runat="server" Text="Button"
            onclick="Button1_Click1" />
    </div>
    </form>
</body>
</html>

 

 

 

public partial class _Default : System.Web.UI.Page
{

    private void Page_Load(object sender, System.EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            ArrayList al = new ArrayList();
            al.Add("星期一");
            al.Add("星期二");
            al.Add("星期三");
            this.ListBox1.DataSource = al;//指定数据源
            this.ListBox1.DataBind();//执行绑定
        }
    }

    protected void Button1_Click1(object sender, EventArgs e)
    {
        this.ListBox2.Items.Clear();

        for (int i = 0; i < this.ListBox1.Items.Count; i++)
        {
            if (ListBox1.Items[i].Selected)
            {
                this.ListBox2.Items.Add(ListBox1.Items[i].Value);
            }
        }

        for (int i = 0; i < this.ListBox1.Items.Count; i++)
        {
            if (this.ListBox1.Items[i].Selected)
            {
                this.ListBox1.Items.RemoveAt(i);
            }
        }
    }
}