使用ListView模仿Windows系统的资源管理器界面，实现文件(夹)的浏览、重命名、删除及查询等功能，主要功能界面展示如下：
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 else
127 {
128 return; //排除关闭窗口异常
129 }
130 try
131 {
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 finally
146 {
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 else
185 {
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 else
196 {
197 fullPath = path + addForm.TxtName;
198 }
199 //直接关闭窗口时
200 if (!addForm.ButtonFlag)
201 {
202 return;
203 }
204 try
205 {
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 else
218 {
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 else
294 {
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 else
323 {
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 #endregion
375
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 else
394 {
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 else
515 {
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 #endregion
541
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 #endregion
572 }
573 }
1. C#winform中ListView及ContextMenuStrip的使用：http://www.cnblogs.com/makesense/p/4079835.html
2.C#winform点击ListView列标题进行排序:http://bbs.csdn.net/topics/350071962
时间： 2024-11-06 22:51:21