C#如何动态添加或删除窗体中的控件（源码）

操作程序窗体的controls属性实现动态添加和删除程序窗体中的控件。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {//动态添加控件
            System.Windows.Forms.TextBox textBox2;
            System.Windows.Forms.Label label1;
            System.Windows.Forms.TextBox textBox1;
            System.Windows.Forms.Label label2;
            label1 = new System.Windows.Forms.Label（）;
            textBox1 = new System.Windows.Forms.TextBox（）;
            label2 = new System.Windows.Forms.Label（）;
            textBox2 = new System.Windows.Forms.TextBox（）;
            // label1
            label1.AutoSize = true;
            label1.Location = new System.Drawing.Point（27 29）;
            label1.Name = “label1“;
            label1.Size = new System.Drawing.Size（65 12）;
            label1.TabIndex = 0;
            label1.Text = “用户名称：“;
            // textBox1
            textBox1.Location = new System.Drawing.Point（98 20）;
            textBox1.Name = “textBox1“;
            textBox1.Size = new System.Drawing.Size（265 21）;
            textBox1.TabIndex = 1;
            //textBox2
            textBox2.Location = new System.Drawing.Point（98 47）;
            textBox2.Name = “textBox2“;
            textBox2.Size = new System.Drawing.Size（265 21）;
            textBox2.TabIndex = 3;
            // label2
            label2.AutoSize = true;
            label2.Location = new System.Drawing.Point（27 56）;
            label2.Name = “label2“;
            label2.Size = new System.Drawing.Size（65 12）;
            label2.TabIndex = 2;
            label2.Text = “用户密码：“;
            Controls.Add（label1）;
            Controls.Add（label2）;
            Controls.Add（textBox1）;
            Controls.Add（textBox2）;
        }

        private void button2_Click（object sender EventArgs e）
        {//动态删除控件
            for （int j = 0; j < this.Controls.Count; j++）
            {//注意：Controls中的控件数是动态变化的
                foreach （Control MyControl in this.Controls）
                {
                    if （MyControl is Label）
                        this.Controls.Remove（MyControl）;
                    if （MyControl is TextBox）
                        this.Controls.Remove（MyControl）;
                }
            }           
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        946  2006-05-30 15:27  B002\WindowsApplication1.sln

    ..A..H.     14848  2006-07-04 00:03  B002\WindowsApplication1.suo

     文件       2774  2006-07-03 23:47  B002\WindowsApplication1\Form1.Designer.cs

     文件       2666  2006-07-03 23:48  B002\WindowsApplication1\Form1.cs

     文件       5814  2006-07-03 23:47  B002\WindowsApplication1\Form1.resx

     文件        478  2006-05-30 15:27  B002\WindowsApplication1\Program.cs

     文件       3245  2006-05-30 15:28  B002\WindowsApplication1\WindowsApplication1.csproj

     文件       1210  2006-05-30 15:27  B002\WindowsApplication1\Properties\AssemblyInfo.cs

     文件       2892  2006-05-30 15:27  B002\WindowsApplication1\Properties\Resources.Designer.cs

     文件       5612  2006-05-30 15:27  B002\WindowsApplication1\Properties\Resources.resx

     文件       1102  2006-05-30 15:27  B002\WindowsApplication1\Properties\Settings.Designer.cs

     文件        249  2006-05-30 15:27  B002\WindowsApplication1\Properties\Settings.settings

     文件       5632  2005-11-11 22:25  B002\WindowsApplication1\bin\Debug\WindowsApplication1.vshost.exe

     文件      20480  2006-07-03 23:48  B002\WindowsApplication1\bin\Release\WindowsApplication1.exe

     文件      24064  2006-07-03 23:48  B002\WindowsApplication1\bin\Release\WindowsApplication1.pdb

     文件       5632  2005-11-11 22:25  B002\WindowsApplication1\bin\Release\WindowsApplication1.vshost.exe

     文件        368  2006-07-04 00:03  B002\WindowsApplication1\obj\WindowsApplication1.csproj.FileList.txt

     文件        180  2006-07-03 23:47  B002\WindowsApplication1\obj\Release\WindowsApplication1.Form1.resources

     文件        180  2006-05-30 15:28  B002\WindowsApplication1\obj\Release\WindowsApplication1.Properties.Resources.resources

     文件        842  2006-07-03 23:47  B002\WindowsApplication1\obj\Release\WindowsApplication1.csproj.GenerateResource.Cache

     文件      20480  2006-07-03 23:48  B002\WindowsApplication1\obj\Release\WindowsApplication1.exe

     文件      24064  2006-07-03 23:48  B002\WindowsApplication1\obj\Release\WindowsApplication1.pdb

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\obj\Debug\TempPE

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\obj\Release\TempPE

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\bin\Debug

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\bin\Release

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\obj\Debug

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\obj\Release

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\Properties

    ..AD...         0  2007-11-23 13:24  B002\WindowsApplication1\bin

............此处省略6个文件信息