form1.cs

Visual C#2005程序设计教程

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

namespace XT14_5
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = "文件复制";
            label1.Text = "源 文 件";
            label2.Text = "目标文件";
            btnOK.Text = "复制";
            btnQuit.Text = "退出";
            lblMsg.Visible = false;
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            int msgNum=0;
            try
            {
                File.Copy(txtS.Text, txtD.Text,true);
                msgNum = 1;
            }
            catch
            {
                lblMsg.Visible = true;
                lblMsg .Text = "出现错误!";
                msgNum = 0;
            }
            finally
            {
                if (msgNum == 1)
                {
                    MessageBox.Show("文件复制成功！", "完成", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
                else
                {
                    MessageBox.Show("文件复制失败！", "完成", MessageBoxButtons.OK, MessageBoxIcon.Error); 

                }
            }
        }

        private void btnQuit_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}