1 using System;  2 using System.Collections.Generic;  3 using System.ComponentModel;  4 using System.Data;  5 using System.Drawing;  6 using System.Linq;  7 using System.Text;  8 using System.Windows.Forms;  9 using System.IO; 10  11 namespace Controls 12 { 13     public partial class MainForm : Form 14     { 15         #region 成员变量 16         /// <summary> 17         /// 用于递归计算文件夹大小 18         /// </summary> 19         private long folderSize = 0; 20  21         /// <summary> 22         ///打开文件夹根路径 23         /// </summary> 24         private string rootPath = string.Empty; 25         #endregion 26  27         #region 初期化 28         /// <summary> 29         /// 默认构造函数 30         /// </summary> 31         public MainForm() 32         { 33             InitializeComponent(); 34             //给窗体注册键盘事件 35             this.KeyPreview = true; 36         } 37  38         /// <summary> 39         /// 初始化窗体,绑定事件 40         /// </summary> 41         /// <param name="sender"></param> 42         /// <param name="e"></param> 43         private void MainForm_Load(object sender, EventArgs e) 44         { 45             this.大图标ToolStripMenuItem.Click += new System.EventHandler(this.ToolStripMenuItem_Click); 46             this.详细信息ToolStripMenuItem.Click += new System.EventHandler(this.ToolStripMenuItem_Click); 47             this.平铺ToolStripMenuItem.Click += new System.EventHandler(this.ToolStripMenuItem_Click); 48             this.小图标ToolStripMenuItem.Click += new System.EventHandler(this.ToolStripMenuItem_Click); 49             this.列表ToolStripMenuItem.Click += new System.EventHandler(this.ToolStripMenuItem_Click); 50         } 51         #endregion 52  53         #region 事件处理 54         /// <summary> 55         /// 搜索框符合条件的人员 56         /// </summary> 57         /// <param name="sender"></param> 58         /// <param name="e"></param> 59         private void btnSearch_Click(object sender, EventArgs e) 60         { 61             AddItemsToListView(txtPath.Text, txtSearch.Text.Trim()); 62             AddHeaderToListView(this.lvwData); 63         } 64  65         /// <summary> 66         /// 给搜索框添加Enter快捷键 67         /// </summary> 68         /// <param name="sender"></param> 69         /// <param name="e"></param> 70         private void MainForm_KeyDown(object sender, KeyEventArgs e) 71         { 72             //搜索框获得焦点且按下Enter键时，执行搜索 73             if (txtSearch.Focused && e.KeyCode == Keys.Enter) 74             { 75                 this.btnSearch_Click(sender, e); 76             } 77         } 78  79         /// <summary> 80         /// 返回上级目录 81         /// </summary> 82         /// <param name="sender"></param> 83         /// <param name="e"></param> 84         private void btnUp_Click(object sender, EventArgs e) 85         { 86             if (txtPath.Text == rootPath || !txtPath.Text.Contains("\\")) 87             { 88                 return; 89             } 90             //找到文件夹上级目录的绝对路径 91             txtPath.Text = txtPath.Text.Substring(0, txtPath.Text.LastIndexOf("\\")); 92             AddItemsToListView(txtPath.Text); 93             AddHeaderToListView(this.lvwData); 94         } 95  96         /// <summary> 97         /// 打开文件夹，显示文件夹 98         /// </summary> 99         /// <param name="sender"></param>100         /// <param name="e"></param>101         private void btnFolder_Click(object sender, EventArgs e)102         {103             DialogResult dr = fbdData.ShowDialog();104             string path = fbdData.SelectedPath.ToString();105             if (dr == DialogResult.OK && path != "")106             {107                 rootPath = path;108                 txtPath.Text = path;109             }110         }111 112         /// <summary>113         /// 新建文件夹，选中文件夹114         /// </summary>115         /// <param name="sender"></param>116         /// <param name="e"></param>117         private void btnAdd_Click(object sender, EventArgs e)118         {119             string fullpath = string.Empty;120             AddForm addForm = new AddForm(btnAdd.Text);121             addForm.ShowDialog();122             if (addForm.ButtonFlag)123             {124                 fullpath = txtPath.Text + "\\" + addForm.TxtName;125             }126             else127             {128                 return; //排除关闭窗口异常129             }130             try131             {132                 if (Directory.Exists(fullpath))133                 {134                     MessageBox.Show("该文件名已经存在！", "提示");135                     return;136                 }137                 Directory.CreateDirectory(fullpath);138                 AddItemsToListView(txtPath.Text);139                 AddHeaderToListView(this.lvwData);140             }141             catch (NullReferenceException ex)142             {143                 MessageBox.Show(ex.Message, "提示");144             }145             finally146             {147                 //选中新增的项，并显示在视野范围内148                 for (int i = 0; i < lvwData.Items.Count; i++)149                 {150                     if (lvwData.Items[i].Tag.ToString() == fullpath)151                     {152                         //先设置ListView选中153                         lvwData.Focus();154                         lvwData.Items[i].Selected = true;155                         //在视野范围内显示156                         lvwData.EnsureVisible(i);157                         break;158                     }159                 }160             }161         }162 163         /// <summary>164         /// 重命名文件夹165         /// </summary>166         /// <param name="sender"></param>167         /// <param name="e"></param>168         private void btnRename_Click(object sender, EventArgs e)169         {170             if (lvwData.SelectedItems.Count <= 0)171             {172                 return;173             }174             string fullName = lvwData.SelectedItems[0].Tag.ToString();175             string path = fullName.Substring(0, fullName.LastIndexOf("\\") + 1);//文件路径176             string suffix = GetSuffixName(fullName);//后缀名177             //文件名或文件夹名178             string fileName = string.Empty;179             if (suffix != string.Empty)180             {181                 fileName = fullName.Substring(fullName.LastIndexOf("\\") + 1,182                         fullName.LastIndexOf(".") - fullName.LastIndexOf("\\") - 1);//文件名183             }184             else185             {186                 fileName = fullName.Substring(fullName.LastIndexOf("\\") + 1);//文件夹名187             }188             string fullPath = string.Empty;189             AddForm addForm = new AddForm(btnRename.Text, fileName);190             addForm.ShowDialog();191             if (suffix != string.Empty)192             {193                 fullPath = path + addForm.TxtName + "." + suffix;194             }195             else196             {197                 fullPath = path + addForm.TxtName;198             }199             //直接关闭窗口时200             if (!addForm.ButtonFlag)201             {202                 return;203             }204             try205             {206                 //重命名文件夹207                 if (suffix == string.Empty)208                 {209                     if (Directory.Exists(fullPath))210                     {211                         MessageBox.Show("该文件名已经存在！", "提示");212                         return;213                     }214                     Directory.Move(fullName, fullPath);215                 }216                 //重命名文件217                 else218                 {219                     if (File.Exists(fullPath))220                     {221                         MessageBox.Show("该文件名已经存在！", "提示");222                         return;223                     }224                     File.Move(fullName, fullPath);225                 }226                 AddItemsToListView(txtPath.Text);227                 AddHeaderToListView(this.lvwData);228             }229             catch (NullReferenceException ex)230             {231                 MessageBox.Show(ex.Message);232             }233         }234 235         /// <summary>236         /// 删除文件夹237         /// </summary>238         /// <param name="sender"></param>239         /// <param name="e"></param>240         private void btnDelete_Click(object sender, EventArgs e)241         {242             int count = lvwData.SelectedItems.Count;243             if (count <= 0)244             {245                 return;246             }247             DialogResult result = MessageBox.Show("你确定删除这" + count + "项吗？", "提示",248                                     MessageBoxButtons.YesNo, MessageBoxIcon.Question);249             if (result == DialogResult.Yes)250             {251                 string path;252                 ListViewItem selectitem;253                 for (int i = 0; i < lvwData.SelectedItems.Count; ) //此处不能i++254                 {255                     selectitem = lvwData.SelectedItems[i];256                     path = selectitem.Tag.ToString();257                     lvwData.Items.Remove(selectitem);258                     if (File.Exists(path))259                     {260                         File.Delete(path);261                     }262                     else if (Directory.Exists(path))263                     {264                         Directory.Delete(path, true);265                     }266                     lvwData.Update();267                 }268             }269         }270 271         /// <summary>272         /// List选中项时发生273         /// </summary>274         /// <param name="sender"></param>275         /// <param name="e"></param>276         private void lvwData_ItemActivate(object sender, EventArgs e)277         {278             ListView lv = (ListView)sender;279             if (lv.SelectedItems.Count <= 0)280             {281                 return;282             }283             string filename = lv.SelectedItems[0].Tag.ToString();284             //如果是文件夹，就打开它285             if (Directory.Exists(filename))286             {287                 AddItemsToListView(filename);288                 AddHeaderToListView(this.lvwData);289                 //获取打开的文件夹路径290                 txtPath.Text = filename;291             }292             //如果是文件，就执行它293             else294             {295                 System.Diagnostics.Process.Start(filename);296             }297         }298 299         /// <summary>300         /// 根据路径的后缀名控制按钮的状态301         /// </summary>302         /// <param name="sender"></param>303         /// <param name="e"></param>304         private void txtPath_TextChanged(object sender, EventArgs e)305         {306             AddItemsToListView(txtPath.Text);307             AddHeaderToListView(this.lvwData);308         }309 310         /// <summary>311         /// ListView列表显示样式312         /// </summary>313         /// <param name="sender"></param>314         /// <param name="e"></param>315         private void ToolStripMenuItem_Click(object sender, EventArgs e)316         {317             ToolStripMenuItem tsMenumItem = sender as ToolStripMenuItem;318             if (tsMenumItem.Checked)319             {320                 return;//已经选中则返回321             }322             else323             {324                 //清除勾选的右键菜单项325                 ClearCheckState(cmsStyle);326                 //勾选选中的右键菜单项327                 tsMenumItem.Checked = true;328             }329             switch (tsMenumItem.Text)330             {331                 case "大图标":332                     lvwData.View = View.LargeIcon;333                     break;334                 case "详细信息":335                     lvwData.View = View.Details;336                     break;337                 case "小图标":338                     lvwData.View = View.SmallIcon;339                     break;340                 case "列表":341                     lvwData.View = View.List;342                     break;343                 case "平铺":344                     lvwData.View = View.Tile;345                     break;346             }347         }348 349         /// <summary>350         /// 清除勾选的右键菜单项351         /// </summary>352         /// <param name="cms">右键菜单</param>353         /// <param name="clearAll">是否全部清除</param>354         private void ClearCheckState(ContextMenuStrip cms, bool clearAll = false)355         {356             ToolStripMenuItem tsMenumItemTemp;357             for (int i = 0; i < cms.Items.Count; i++)358             {359                 if (!(cms.Items[i] is ToolStripMenuItem))360                 {361                     continue;362                 }363                 tsMenumItemTemp = cms.Items[i] as ToolStripMenuItem;364                 if (tsMenumItemTemp.Checked)365                 {366                     tsMenumItemTemp.Checked = false;367                     if (!clearAll)368                     {369                         break;370                     }371                 }372             }373         }374         #endregion375 376         #region 设置ListView的显示样式377         /// <summary>378         /// 根据后缀名，设置listview显示样式379         /// </summary>380         /// <param name="root">根节点</param>381         /// <param name="keywords">搜索关键字</param>382         private void AddItemsToListView(string root, string keywords = "")383         {384             //把listview里的所有选项与所有列名都删除385             lvwData.Clear();386             lvwData.BeginUpdate();387             //文件388             if (File.Exists(root))389             {390                 AddFileToListView(new FileInfo(root), keywords);391             }392             //文件夹393             else394             {395                 DirectoryInfo dir = new DirectoryInfo(root);396                 DirectoryInfo[] dirs = dir.GetDirectories();397                 FileInfo[] files = dir.GetFiles();398                 //把文件夹信息添加到listview的选项中399                 foreach (DirectoryInfo directoryInfo in dirs)400                 {401                     AddFolderToListView(directoryInfo, keywords);402                 }403                 //把文件夹下文件信息添加到listview的选项中404                 foreach (FileInfo fileInfo in files)405                 {406                     AddFileToListView(fileInfo, keywords);407                 }408             }409             this.lvwData.EndUpdate();410         }411 412         /// <summary>413         /// 将文件添加到ListView中显示414         /// </summary>415         /// <param name="fileInfo">文件全路径</param>416         /// <param name="keywords">搜索关键字</param>417         private void AddFileToListView(FileInfo fileInfo, string keywords)418         {419             ListViewItem lvi = new ListViewItem();//文件项420             lvi.Tag = fileInfo.FullName;421             lvi.Text = fileInfo.Name;422             lvi.ImageIndex = imgLarge.Images.Count - 1;423             if (keywords != "" && (!lvi.Text.Contains(keywords)))424             {425                 return;//搜索不到关键字，不将文件添加到ListView中显示426             }427             //文件的名称属性项428             lvi.SubItems[0].Tag = lvi.Tag;429             lvi.SubItems[0].Text = lvi.Text;430             //文件大小属性项431             ListViewItem.ListViewSubItem lvsi = new ListViewItem.ListViewSubItem();432             lvsi.Tag = fileInfo.Length;433             lvsi.Text = fileInfo.Length / 1024 + " KB";434             lvi.SubItems.Add(lvsi);435             //修改日期属性项436             lvsi = new ListViewItem.ListViewSubItem();437             lvsi.Tag = fileInfo.LastAccessTime.ToString();438             lvsi.Text = fileInfo.LastAccessTime.ToString();439             lvi.SubItems.Add(lvsi);440             //添加文件441             this.lvwData.Items.Add(lvi);442         }443 444         /// <summary>445         /// 将文件夹添加到ListView中显示446         /// </summary>447         /// <param name="DirectoryInfo">文件夹</param>448         /// <param name="keywords">搜索关键字</param>449         private void AddFolderToListView(DirectoryInfo DirectoryInfo, string keywords)450         {451             ListViewItem lvi = new ListViewItem();452             lvi.Tag = DirectoryInfo.FullName;453             lvi.Text = DirectoryInfo.Name;//显示名称454             lvi.ImageIndex = 0;455             if (keywords != "" && (!lvi.Text.Contains(keywords)))456             {457                 return;//搜索不到关键字，不将文件夹添加到ListView中显示458             }459             // 文件夹的名称属性项460             lvi.SubItems[0].Tag = lvi.Tag;461             lvi.SubItems[0].Text = lvi.Text;462             //文件夹大小属性项463             ListViewItem.ListViewSubItem lvsi = new ListViewItem.ListViewSubItem();464             lvsi.Tag = GetFolderSize(DirectoryInfo);465             lvsi.Text = FormatFolderSize(folderSize);466             folderSize = 0;//清零计算文件夹大小的变量467             lvi.SubItems.Add(lvsi);468             //修改日期属性项469             lvsi = new ListViewItem.ListViewSubItem();470             lvsi.Tag = DirectoryInfo.LastAccessTime.ToString();471             lvsi.Text = DirectoryInfo.LastAccessTime.ToString();472             lvi.SubItems.Add(lvsi);473             //添加文件夹474             this.lvwData.Items.Add(lvi);475         }476 477         /// <summary>478         /// 递归计算文件夹的大小479         /// </summary>480         /// <param name="DirectoryInfo">文件夹</param>481         /// <returns>文件夹大小</returns>482         private long GetFolderSize(DirectoryInfo DirectoryInfo)483         {484             DirectoryInfo[] dirs = DirectoryInfo.GetDirectories();485             FileInfo[] files = DirectoryInfo.GetFiles();486             //是文件夹时，继续递归487             if (dirs.Length > 0)488             {489                 foreach (DirectoryInfo dir in dirs)490                 {491                     GetFolderSize(dir);492                 }493             }494             //是文件时，进行累加计算495             foreach (FileInfo fi in files)496             {497                 folderSize = folderSize + fi.Length;498             }499             return folderSize;500         }501 502         /// <summary>503         /// 将文件夹大小转化为直观的文字显示504         /// </summary>505         /// <param name="size">文件夹大小</param>506         /// <returns>文件夹大小的文字表示</returns>507         private string FormatFolderSize(long size)508         {509             if ((size >> 20) > 0)510             {511                 //保留两位小数512                 return ((size >> 10) / 1024.0).ToString("F2") + " MB";513             }514             else515             {516                 return (size >> 10) + " KB";517             }518         }519 520         /// <summary>521         /// 为listview添加列标题522         /// </summary>523         private void AddHeaderToListView(ListView listView)524         {525             ColumnHeader ch = new ColumnHeader();526             ch.Text = "文件名";527             ch.Width = 120;528             listView.Columns.Add(ch);529 530             ch = new ColumnHeader();531             ch.Width = 70;532             ch.Text = "大小";533             listView.Columns.Add(ch);534 535             ch = new ColumnHeader();536             ch.Text = "修改日期";537             ch.Width = 140;538             listView.Columns.Add(ch);539         }540         #endregion541 542         #region 经常使用的公共方法543         /// <summary>544         /// 获取文件后缀名(小写)545         /// </summary>546         /// <param name="path">文件全路径或文件名</param>547         public string GetSuffixName(string path)548         {549             string suffix = string.Empty;550             if (path.Contains("."))551             {552                 suffix = path.Substring(path.LastIndexOf(".") + 1);//后缀名553             }554             return suffix.ToLower();555         }556 557         /// <summary>558         /// 获取应用程序根路径559         /// </summary>560         public static string GetApplicationPath()561         {562             string path = Application.StartupPath;563             string folderName = String.Empty;564             while (folderName.ToLower() != "bin")565             {566                 path = path.Substring(0, path.LastIndexOf("\\"));567                 folderName = path.Substring(path.LastIndexOf("\\") + 1);568             }569             return path.Substring(0, path.LastIndexOf("\\") + 1);570         }571         #endregion572     }573 }