C #关于OpenFileDialog的使用

可以用以下代码来实现上面这个对话框：

private void openFileDialogBTN_Click(object sender, System.EventArgs e){ OpenFileDialog openFileDialog=new OpenFileDialog(); openFileDialog.InitialDirectory="c:\\";//注意这里写路径时要用c:\\而不是c:\ openFileDialog.Filter="文本文件|*.*|C#文件|*.cs|所有文件|*.*"; openFileDialog.RestoreDirectory=true; openFileDialog.FilterIndex=1; if (openFileDialog.ShowDialog()==DialogResult.OK) { fName=openFileDialog.FileName; File fileOpen=new File(fName); isFileHaveName=true; richTextBox1.Text=fileOpen.ReadFile(); richTextBox1.AppendText(""); } }

 

　　路径的返回用filename是字符串类型

如：openFileDialog1.ShowDialog();

_name1= openFileDialog1.FileName;

Image imge = Image.FromFile(_name1);

 

 

为了方便同事在日常工作中很快速生成大量数据, 我做了文件拷贝的小工具:

其中用到了OpenFileDialog这个类,下面是关于这个类的一些用法!

OpenFileDialog类是用来选择文件位置的,

FolderBrowserDialog 类用来选择文件夹位置.

具体代码如下:

程序源码:

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 copyFile

{

    public partial class Form1 : Form

    {

        String fileName;

        String folderName;

        String extendedName;

        String fileName1;

       

        public Form1()

        {

            InitializeComponent();

        }

        private void browse_Click(object sender,EventArgs e)

        {

            OpenFileDialog ofd = new OpenFileDialog();                //new一个方法

            ofd.InitialDirectory = Environment. GetFolderPath_r(Environment.SpecialFolder.MyDocuments); //定义打开的默认文件夹位置

            ofd.ShowDialog();          //显示打开文件的窗口

             fileName = ofd.FileName;                //获得选择的文件路径

             textBox1.Text = fileName;

             extendedName = Path. GetExtension_r(fileName);       //获得文件扩展名

             fileName1 = Path. GetFileName_r(fileName);           //获得文件名

        }

        private void folder_Click(object sender, EventArgs e)

        {

            FolderBrowserDialog fbd = new FolderBrowserDialog();

            fbd.ShowDialog();

            folderName = fbd.SelectedPath;                     //获得选择的文件夹路径

            textBox3.Text = folderName;

        }

        private void ok_Click(object sender, EventArgs e)

        {

             if (textBox1.Text.Trim().Length == 0)

            {

                MessageBox.Show("文件路径不能为空!");

                return;

            }

            if (textBox2.Text.Trim().Length == 0)

            {

                MessageBox.Show("复制数量不能为空!");

                return;

            }

            if (textBox3.Text.Trim().Length == 0)

            {

                MessageBox.Show("目标文件夹路径不能为空!");

                return;

            }

            String newFile;                   //定义存储的位置,和存储的名称

           

            for (int i = 1; i <= Convert.ToInt32(textBox2.Text); i++)