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 FileExplorer{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } /// <summary> /// 定义初始的全局变量 /// </summary> string explorerPath = ""; string treeViewPath = ""; /// <summary> /// 点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button_open_Click(object sender, EventArgs e) { if (folderBrowserDialog.ShowDialog() == DialogResult.OK) { string path = folderBrowserDialog.SelectedPath; explorerPath = path; treeViewPath = path; this.textBox_path.Text = path; this.treeView_list.Nodes.Clear(); getExplorerView(null, path); } } /// <summary> /// 单层遍历，仅显示当前目录下的文件夹和文件 /// </summary> /// <param name="path"></param> private void getFolderView(string path) { explorerPath = path; textBox_path.Text = explorerPath; try { this.listView_show.Items.Clear(); DirectoryInfo TheFolder = new DirectoryInfo(path); //遍历文件夹 foreach (DirectoryInfo NextFolder in TheFolder.GetDirectories()) { this.listView_show.Items.Add("【" NextFolder.Name "】"); } //遍历文件 foreach (FileInfo NextFile in TheFolder.GetFiles()) this.listView_show.Items.Add(NextFile.Name); //再添加文件大小显示 } catch(Exception) { } } /** * 遍历方案： -- 深度优先遍历 * 1.获取当前目录下的所有文件夹 * 2.将第一个目录添加到treeView节点，并返回该节点的 TreeNode对象 * 3.递归将返回到treeNode对象传递进去，还有子级目录的文件夹名称 * 4.循环 * 5.深度结束条件：子级目录为空 * 问题，第一层根节点怎么传值？ 解决 传一个 null */ /// <summary> /// 遍历函数 /// </summary> /// <param name="path"></param> private void getExplorerView(TreeNode node,string path) { try { TreeNode newnode = null; DirectoryInfo TheFolder = new DirectoryInfo(path); //遍历文件夹 foreach (DirectoryInfo NextFolder in TheFolder.GetDirectories()) { newnode = addTreeViewLevelNode(node, NextFolder.Name); //添加一个节点 getExplorerView(newnode, NextFolder.FullName); } } catch (Exception) { MessageBox.Show("路径不存在"); } } /// <summary> /// 目录遍历函数 /// </summary> /// <param name="node"></param> /// <param name="name"></param> /// <returns></returns> private TreeNode addTreeViewLevelNode(TreeNode node, string name) { TreeNode levelNode = new TreeNode(); levelNode.Text = name; if (node == null) { treeView_list.Nodes.Add(levelNode); } else {levelNode.Text = name; node.Nodes.Add(levelNode); } return levelNode; } /// <summary> /// treeView节点点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void treeView_list_AfterSelect(object sender, TreeViewEventArgs e) { string newPath = ""; TreeNode node = null; try { node = e.Node.Parent; newPath = e.Node.Text; while (true) { newPath = newPath.Insert(0, node.Text "\\"); //node.Text "\\" node = node.Parent; } } catch (NullReferenceException) { } if (!newPath.Equals("")) { explorerPath = newPath.Insert(0, treeViewPath "\\"); getFolderView(explorerPath);//遍历该层文件 } } /// <summary> /// 处理listView中目录点击展开事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void listView_show_SelectedIndexChanged_1(object sender, EventArgs e) { try { string filename = this.listView_show.SelectedItems[0].SubItems[0].Text; if (filename.StartsWith("【")) //目录处理方式 { filename = filename.Replace("【", ""); filename = filename.Replace("】", ""); string newPath = explorerPath "\\" filename; getFolderView(newPath);//遍历该层文件 } else //文件处理方式 { string newPath = explorerPath "\\" filename; //显示文件大小 int size = getFileSize(newPath); if(size > 1024*1024) { toolStripStatusLabel3.Text = ((float)size / (1024 * 1024)).ToString("F1") "GB"; } else if (size>1024) { toolStripStatusLabel3.Text = ((float)size / 1024).ToString("F1") "MB"; } else { toolStripStatusLabel3.Text = size "KB"; } OpenFile(newPath); } } catch (ArgumentOutOfRangeException) { //MessageBox.Show(ex.ToString()); }} /// <summary> /// 后退按钮点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button_back_Click(object sender, EventArgs e) { try { string newPath = explorerPath.Substring(0, explorerPath.LastIndexOf("\\")); getFolderView(newPath); }catch(ArgumentOutOfRangeException) { } } /// <summary> /// 打开文件，仅支持文本文件，而且文件大小小于1MB /// </summary> /// <param name="path"></param> private void OpenFile(string path) { if(getFileSize(path)<1000 && getFileType(path)) //如果文件小于1000KB，并且后缀为文本文件类型 { Read_line(path); } else if (getFileSize(path) < 5000 && getPicFileType(path)) { openPic(path); } } /// <summary> /// 读取文本文件 - 自动换行 /// </summary> /// <param name="path"></param> public void Read_line(string path) { this.richTextBox_txtShow.Visible = true; this.pictureBox1.Visible = false; this.richTextBox_txtShow.Clear(); StreamReader sr = new StreamReader(path, Encoding.Default); String line; while ((line = sr.ReadLine()) != null) { this.richTextBox_txtShow.Text = line.ToString() "\n"; } sr.Close(); } /// <summary> /// 打开一幅图像，前提是先将之前的文本控件隐藏，然后显示图片控件 /// </summary> /// <param name="path"></param> private void openPic(string path) { this.richTextBox_txtShow.Visible = false; this.pictureBox1.Visible = true; this.pictureBox1.ImageLocation = path; } /// <summary> /// 获取文件的大小 /// </summary> /// <param name="path"></param> private int getFileSize(string path) { try { FileInfo fi = new FileInfo(path); //返回的是字节大小 float x = ((float)fi.Length / 1024); int result = (int)(x 1); return result; } catch (FileNotFoundException) { return 0; } } /// <summary> /// 获取文件类型是否是文本类型，主要是判断文件后缀。 /// </summary> /// <param name="path"></param> /// <returns></returns> private bool getFileType(string path) { string fileType = path.Substring(path.LastIndexOf(".") 1, path.Length - path.LastIndexOf(".") -1); string[] type = { "txt", "xml", "ini", "conf", "java", "cs", "sql", "html", "js", "css", "c", "h", "cpp","py" }; for (int i = 0; i < type.Length;i ) { if (fileType.Equals(type[i])) { return true; } } return false; } /// <summary> /// 获取文件类型是否为图片，主要是根据文件后缀判断 /// </summary> /// <param name="path"></param> /// <returns></returns> private bool getPicFileType(string path) { string fileType = path.Substring(path.LastIndexOf(".") 1, path.Length - path.LastIndexOf(".") - 1); string[] type = { "jpg", "jpeg", "png", "bmp", "ico", "gif" }; for (int i = 0; i < type.Length; i ) { if (fileType.Equals(type[i])) { return true; } } return false; } /// <summary> /// 定时器-状态栏 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void StatuUpdate(object sender, EventArgs e) { toolStripStatusLabel1.Text = DateTime.Now.ToString();//时间 toolStripStatusLabel2.Text = "共" this.listView_show.Items.Count "个项目"; //文件数 } /// <summary> /// 转到 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button_go_Click(object sender, EventArgs e) { string path = this.textBox_path.Text; explorerPath = path; treeViewPath = path; this.treeView_list.Nodes.Clear(); getExplorerView(null, path); } /// <summary> /// 文件删除 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button_delete_Click(object sender, EventArgs e) { try { string filename = this.listView_show.SelectedItems[0].SubItems[0].Text; string newPath = explorerPath "\\" filename; if (!filename.Equals("")) { DialogResult r1 = MessageBox.Show("是否永久删除该文件？", "删除", MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (r1.ToString() == "Yes") { //删除文件 File.Delete(newPath); getFolderView(explorerPath); } else if (r1.ToString().Equals("No")) { return; } } } catch (Exception) { MessageBox.Show("暂时不允许删除目录"); } } /// <summary> /// 拷贝按钮点击事件,目前仅针对文件，文件夹不可以 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> string copy_path = ""; string copy_name = ""; private void button_copy_Click(object sender, EventArgs e) { this.button_parse.Enabled = true; copy_name = this.listView_show.SelectedItems[0].SubItems[0].Text; copy_path = explorerPath "\\" copy_name; } /// <summary> /// 剪切按钮点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> string cut_path = ""; string cut_name = ""; private void button_cut_Click(object sender, EventArgs e) { this.button_parse.Enabled = true; cut_name = this.listView_show.SelectedItems[0].SubItems[0].Text; cut_path = explorerPath "\\" cut_name; } /// <summary> /// 粘贴按钮点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> string parse_path = ""; private void button_parse_Click(object sender, EventArgs e) { try { parse_path = explorerPath; if (!copy_path.Equals("")) { File.Copy(copy_path, parse_path "\\" copy_name); getFolderView(parse_path); copy_path = ""; } else if (!cut_path.Equals("")) { File.Move(cut_path, parse_path "\\" cut_name); getFolderView(parse_path); cut_path = ""; } }catch(Exception) { MessageBox.Show("目前支持对文件操作"); } } }}
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