form1.cs

这是.net2005学习不可缺少的教程

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 btn_ShowForm_Click(object sender, EventArgs e)
        {
            Form2 newForm2 = new Form2();
            if (newForm2.ShowDialog() == DialogResult.OK)
            {
                this.Text = newForm2.strTextbox;
            }
        }
    }
}