lab10源码

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

namespace lab10
{
    public partial class Form1 : Form
    {
        /*保存控件数*/
        private static int countOfButton = 1;
        private static int countOfCheckBox = 1;
        private static int countOfTextBox = 1;

        public Form1()
        {
            InitializeComponent();
        }


        /*窗体加载事件*/
        private void Form1_Load(object sender, EventArgs e)
        {
            button2.Text = "清空";
            button3.Text = "复制";
            panel1.BorderStyle = BorderStyle.Fixed3D;
            this.Width = 800;
            this.Height = 500;
            panel1.Width = 500;    
        }

        //清空按钮事件
        private void button2_Click(object sender, EventArgs e)
        {
            panel1.Controls.Clear();
        }


        //按钮复制事件
        private void button1_Click(object sender, EventArgs e)
        {
            Button button = new Button();
            button.Text = "button"+countOfButton.ToString();
            panel1.Controls.Add(button);
            button.Top = (countOfButton -1)* 30;
            countOfButton++;
            button.MouseMove += new MouseEventHandler(changeButtonLocation);
            button.Cursor = Cursors.Cross;
        }

        //复选框复制
        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            CheckBox checkBox = new CheckBox();
            checkBox.Text = "checkBox" +countOfCheckBox.ToString();
            panel1.Controls.Add(checkBox);
            checkBox.Top = (countOfCheckBox - 1) * 30;
            checkBox.Left = 100;
            countOfCheckBox++;
            checkBox.MouseMove+=new MouseEventHandler(changeCheckBoxLocation);
            checkBox.Cursor = Cursors.Cross;
        }


        //文本框复制
        private void textBox1_Click(object sender, EventArgs e)
        {
            TextBox textBox = new TextBox();
            textBox.Text = "textBox" + countOfTextBox.ToString();
            panel1.Controls.Add(textBox);
            textBox.Top = (countOfTextBox - 1) * 30;
            textBox.Left = 200;
            countOfTextBox++;
            textBox.MouseMove+=new MouseEventHandler(changeTexBoxLocation); //事件注册
            textBox.Cursor = Cursors.Cross;
        }

        //panel复制事件
        private void button3_Click(object sender, EventArgs e)
        {
          Form f1  =new Form();
          f1.Width = 800;
          f1.Height = 500;
            f1.Show();
            f1.Controls.Add(panel1);
        }

     
        //改变按钮位置
        private void changeButtonLocation(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left) {
                Button button = sender as Button;
                button.Location = new Point(MousePosition.X-this.Location.X-panel1.Location.X-20, MousePosition.Y-this.Location.Y-panel1.Location.Y-35);
            }
           
        }

        //改变复选框位置
        private void changeCheckBoxLocation(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                CheckBox checkBox = sender as CheckBox;
                checkBox.Location = new Point(MousePosition.X - this.Location.X - panel1.Location.X - 20, MousePosition.Y - this.Location.Y - panel1.Location.Y - 35);
            }

        }


        //改变文本框位置
        private void changeTexBoxLocation(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                TextBox textBox = sender as TextBox;
                textBox.Location = new Point(MousePosition.X - this.Location.X - panel1.Location.X - 20, MousePosition.Y - this.Location.Y - panel1.Location.Y - 35);
            }
        }
    }
}