panel用法

来源：互联网发布：雷人电视剧知乎编辑：程序博客网时间：2024/06/03 01:51

源文件
<%@ 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></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    </div>
    <asp:Panel ID="Panel1" runat="server" BackColor="#6666FF" BorderColor="#CC0000"
        BorderStyle="Dashed" Height="113px">
    </asp:Panel>
    <p>
        <span lang="zh-cn">添加<asp:DropDownList ID="DropDownList1" runat="server"
            AutoPostBack="True">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
            <asp:ListItem>4</asp:ListItem>
        </asp:DropDownList>
        个LABEL控件</span></p>
    <p>
        <span lang="zh-cn">添加<asp:DropDownList ID="DropDownList2" runat="server"
            AutoPostBack="True">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
            <asp:ListItem>4</asp:ListItem>
        </asp:DropDownList>
        个TEXTBOX控件</span></p>
    <p>
        <span lang="zh-cn">添加<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        字符进去</span></p>
    <p>
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="添加" />
        <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True"
            oncheckedchanged="CheckBox2_CheckedChanged" />
    </p>
    </form>
</body>
</html>

aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        int a = int.Parse(DropDownList1.SelectedItem.Value);
        for (int i = 1; i <= a; i++)
        {
            Label lb = new Label();
            lb.ID = "lb" + i;
            lb.Text = "玉哥" + i.ToString();
            Panel1.Controls.Add(lb);
        }
        int b = int.Parse(DropDownList2.SelectedItem.Value);
        for (int i = 1; i <= b; i++)
        {
            TextBox tb = new TextBox();
            tb.ID = "tb" + i;
            tb.Text = "tb" + i.ToString();
            Literal lt = new Literal();
            lt.Text = "<br>";
            Panel1.Controls.Add(tb);
            Panel1.Controls.Add(lt);
        }
        Literal txt = new Literal();
        txt.Text = TextBox1.Text;

        Panel1.Controls.Add(txt);

    }
    protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
        //if (!CheckBox1.Checked)
        //{   CheckBox1.Text = "隐藏";
        //    Panel1.Visible = true;

        //}
        //else
        //{   CheckBox1.Text = "显示";
        //    Panel1.Visible = false;

        //}
    }
    protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
    {
        if (!CheckBox2.Checked)
        {
            Panel1.Visible = true;
            CheckBox2.Text = "请选择隐藏";
        }
        else
        {
            Panel1.Visible = false;
            CheckBox2.Text = "请选择显示";
        }
    }
}