Visual Studio 中用代码打开文件目录

首先引用 命名空间：  System.Windows.Forms;

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 OpenFile

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

 

        private void button1_Click(object sender, EventArgs e)

        {

            Stream myStream = null;

            OpenFileDialog openFileDialog1 = new OpenFileDialog();

 

            openFileDialog1.InitialDirectory = "c:\";

            openFileDialog1.Filter = "Excel 文件t(*.xl*;*.xlsx;*.xlsm;*.xlsb;*.xlam;*.xltx;*.xltm;*.xls)|*.xl*;*.xlsx;*.xlsm;*.xlsb;*.xlam;*.xltx;*.xltm;*.xls|All files (*.*)|*.*";

            openFileDialog1.FilterIndex = 2;

            openFileDialog1.RestoreDirectory = true;

 

            if (openFileDialog1.ShowDialog() == DialogResult.OK)

            {

                try

                {

                    if ((myStream = openFileDialog1.OpenFile()) != null)

                    {

                        using (myStream)

                        {

                            // Insert code to read the stream here.

 

                           

                        }

                    }

                }

                catch (Exception ex)

                {

                    MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);

                }

            }

 

        }

    }

}

 实现效果：