多窗口创建控件

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;
using System.IO;

namespace wht
{
    public partial class Form1 : Form
    {
        private static int FormCount = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path = @"c:\temp\MyTest.txt";
           
                if (File.Exists(path))
                {
                    File.Delete(path);
                }

                using (StreamWriter sw = new StreamWriter(path))
                {
                    sw.WriteLine("This");
                    sw.WriteLine("is some textvbbnvnvncfdh");
                    sw.WriteLine("to test");
                    sw.WriteLine("Reading");
                }

                using (StreamReader sr = new StreamReader(path))
                {
                    string tt = "";
                    while (sr.Peek() >= 0)
                    {
                       // Console.WriteLine(sr.ReadLine());
                       tt += sr.ReadLine() + "\n";
                    }
                    MessageBox.Show(tt);
                }
              
        }

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }

        private void 新建ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Form frmTemp = new Form();
          
           // Button button1 = new Button ();
           // Button button2 = new Button ();
           // button1.Text = "OK";
           // button1.Location = new Point (10, 10);
           // button2.Text = "Cancel";
           // button2.Location
           

            //frmTemp.MdiParent = this;
           // frmTemp.Text = "window#" + FormCount.ToString();
            //FormCount++;
           // frmTemp.Controls.Add(button1);
            //frmTemp.Controls.Add(button2);
            //frmTemp.Show();

            // Create a new instance of the form.
            Form form1 = new Form();

            form1.MdiParent = this;
            // Create two buttons to use as the accept and cancel buttons.
            Button button1 = new Button();
            Button button2 = new Button();

            // Set the text of button1 to "OK".
            button1.Text = "OK";
            // Set the position of the button on the form.
            button1.Location = new Point(10, 10);
            // Set the text of button2 to "Cancel".
            button2.Text = "Cancel";
            // Set the position of the button based on the location of button1.
            button2.Location
               = new Point(button1.Left, button1.Height + button1.Top + 10);
            // Set the caption bar text of the form.  
            form1.Text = "My Dialog Box";
            // Display a help button on the form.
            form1.HelpButton = true;

            // Define the border style of the form to a dialog box.
            form1.FormBorderStyle = FormBorderStyle.FixedDialog;
            // Set the MaximizeBox to false to remove the maximize box.
            form1.MaximizeBox = false;
            // Set the MinimizeBox to false to remove the minimize box.
            form1.MinimizeBox = false;
            // Set the accept button of the form to button1.
            form1.AcceptButton = button1;
            // Set the cancel button of the form to button2.
            form1.CancelButton = button2;
            // Set the start position of the form to the center of the screen.
            form1.StartPosition = FormStartPosition.CenterScreen;

            // Add button1 to the form.
            form1.Controls.Add(button1);
            // Add button2 to the form.
            form1.Controls.Add(button2);

            // Display the form as a modal dialog box.
            form1.Show();

           

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

    }
}