转自：http://www.jb51.net/article/52282.htm
这篇文章主要介绍了C#实现获取系统目录并以Tree树叉显示的方法,可以加深读者对于C#下数据结构实现方法的认识,需要的朋友可以参考下
本文讲述C#获取Windows系统目录，如何目录遍历以及将信息捆绑在TreeView中显示出来的实现方法，具体实现代码如下：

1. using System;
   
2. using System.Drawing;
   
3. using System.Collections;
   
4. using System.ComponentModel;
   
5. using System.Windows.Forms;
   
6. using System.Data;
   
7. using System.IO;
   
8. namespace 获取系统目录
   
9. {
   
10. public class Form1 : System.Windows.Forms.Form
    
11. {
    
12. private System.Windows.Forms.TreeView treeView1;
    
13. private System.ComponentModel.IContainer components;
    
14. private System.Windows.Forms.Button button2;
    
15. private System.Windows.Forms.Label label2;
    
16. private System.Windows.Forms.Button button1;
    
17. private System.Windows.Forms.TextBox textBox1;
    
18. private System.Windows.Forms.Label label1;
    
19. public Form1()
    
20. {
    
21. InitializeComponent();
    
22. FillTree(treeView1, true); // 显示所有文件夹以及文件
    
23. }
    
24. protected override void Dispose( bool disposing )
    
25. {
    
26. if( disposing )
    
27. {
    
28. if (components != null)
    
29. {
    
30. components.Dispose();
    
31. }
    
32. }
    
33. base.Dispose( disposing );
    
34. }
    
35. #region Windows 窗体设计器生成的代码
    
36. private void InitializeComponent()
    
37. {
    
38. this.textBox1 = new System.Windows.Forms.TextBox();
    
39. this.label2 = new System.Windows.Forms.Label();
    
40. this.label1 = new System.Windows.Forms.Label();
    
41. this.treeView1 = new System.Windows.Forms.TreeView();
    
42. this.button1 = new System.Windows.Forms.Button();
    
43. this.button2 = new System.Windows.Forms.Button();
    
44. this.SuspendLayout();
    
45. this.textBox1.Location = new System.Drawing.Point(280, 56);
    
46. this.textBox1.Multiline = true;
    
47. this.textBox1.Name = "textBox1";
    
48. this.textBox1.Size = new System.Drawing.Size(208, 192);
    
49. this.textBox1.TabIndex = 3;
    
50. this.textBox1.Text = "";
    
51. this.label2.AutoSize = true;
    
52. this.label2.Location = new System.Drawing.Point(280, 24);
    
53. this.label2.Name = "label2";
    
54. this.label2.Size = new System.Drawing.Size(116, 17);
    
55. this.label2.TabIndex = 4;
    
56. this.label2.Text = "文件夹或文件信息：";
    
57. this.label1.AutoSize = true;
    
58. this.label1.Location = new System.Drawing.Point(16, 24);
    
59. this.label1.Name = "label1";
    
60. this.label1.Size = new System.Drawing.Size(153, 17);
    
61. this.label1.TabIndex = 5;
    
62. this.label1.Text = "请选择一个文件夹或文件：";
    
63. this.treeView1.ImageIndex = -1;
    
64. this.treeView1.Location = new System.Drawing.Point(16, 56);
    
65. this.treeView1.Name = "treeView1";
    
66. this.treeView1.SelectedImageIndex = -1;
    
67. this.treeView1.Size = new System.Drawing.Size(184, 192);
    
68. this.treeView1.TabIndex = 6;
    
69. this.button1.Location = new System.Drawing.Point(216, 104);
    
70. this.button1.Name = "button1";
    
71. this.button1.Size = new System.Drawing.Size(48, 32);
    
72. this.button1.TabIndex = 7;
    
73. this.button1.Text = "显示";
    
74. this.button1.Click += new System.EventHandler(this.button1_Click);
    
75. this.button2.Location = new System.Drawing.Point(216, 168);
    
76. this.button2.Name = "button2";
    
77. this.button2.Size = new System.Drawing.Size(48, 32);
    
78. this.button2.TabIndex = 8;
    
79. this.button2.Text = "清空";
    
80. this.button2.Click += new System.EventHandler(this.button2_Click);
    
81. this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
    
82. this.ClientSize = new System.Drawing.Size(504, 277);
    
83. this.Controls.Add(this.button2);
    
84. this.Controls.Add(this.button1);
    
85. this.Controls.Add(this.treeView1);
    
86. this.Controls.Add(this.label1);
    
87. this.Controls.Add(this.label2);
    
88. this.Controls.Add(this.textBox1);
    
89. this.Name = "Form1";
    
90. this.Text = "Form1";
    
91. this.ResumeLayout(false);
    
92. }
    
93. #endregion
    
94. [STAThread]
    
95. static void Main()
    
96. {
    
97. Application.Run(new Form1());
    
98. }
    
99. // 填充目录和文件到 TreeView 控件中
    
100. // isSource 表示是否显示文件
     
101. private void FillTree(TreeView treeView,bool isSource)
     
102. {
     
103. treeView.Nodes.Clear(); // 清空
     
104. // 获取系统上的所有逻辑驱动器
     
105. string[] strDrives = Environment.GetLogicalDrives();
     
106. foreach(string rootDirectoryName in strDrives)
     
107. {
     
108. try
     
109. {
     
110. // 获取驱动器顶级目录列表
     
111. DirectoryInfo dir = new DirectoryInfo(rootDirectoryName);
     
112. 
     
113. // 如果获得的目录信息正确，则将它添加到 TreeView 控件中
     
114. if (dir.Exists == true)
     
115. {
     
116. TreeNode newNode = new TreeNode(rootDirectoryName);
     
117. treeView.Nodes.Add(newNode);
     
118. if (isSource)
     
119. {
     
120. GetSubDirectoryNodes(newNode, newNode.Text, true);
     
121. }
     
122. else
     
123. {
     
124. GetSubDirectoryNodes(newNode, newNode.Text, false);
     
125. }
     
126. }
     
127. }
     
128. catch(Exception e)
     
129. {
     
130. MessageBox.Show(e.Message);
     
131. }
     
132. }
     
133. }
     
134. // 遍历子目录
     
135. private void GetSubDirectoryNodes(TreeNode parentNode, string fullName, bool getFileNames)
     
136. {
     
137. DirectoryInfo dir = new DirectoryInfo(fullName);
     
138. DirectoryInfo[] subDirs = dir.GetDirectories();
     
139. // 为每一个子目录添加一个子节点
     
140. foreach(DirectoryInfo subDir in subDirs)
     
141. {
     
142. // 不显示隐藏文件夹
     
143. if((subDir.Attributes & FileAttributes.Hidden) != 0)
     
144. {
     
145. continue;
     
146. }
     
147. TreeNode subNode = new TreeNode(subDir.Name);
     
148. parentNode.Nodes.Add(subNode);
     
149. // 递归调用GetSubDirectoryNodes
     
150. GetSubDirectoryNodes(subNode, subDir.FullName, getFileNames);
     
151. }
     
152. // 获取目录中的文件
     
153. if(getFileNames)
     
154. {
     
155. FileInfo[] files = dir.GetFiles();
     
156. foreach(FileInfo file in files)
     
157. {
     
158. TreeNode fileNode = new TreeNode(file.Name);
     
159. parentNode.Nodes.Add(fileNode);
     
160. }
     
161. }
     
162. }
     
163. private void button1_Click(object sender, System.EventArgs e)
     
164. {
     
165. try
     
166. {
     
167. TreeNode selectedNode = treeView1.SelectedNode;
     
168. DirectoryInfo info = new DirectoryInfo(selectedNode.FullPath);
     
169. string [] strArray = new string[4];
     
170. strArray[0] = "完整路径名 : "+ info.FullName;
     
171. strArray[1] = "创建时间 : "+ info.CreationTime.ToString();
     
172. strArray[2] = "上次访问时间 : "+ info.LastAccessTime.ToString();
     
173. strArray[3] = "上次写入时间 : "+ info.LastWriteTime.ToString();
     
174. textBox1.Lines = strArray;
     
175. }
     
176. catch(Exception exc)
     
177. {
     
178. MessageBox.Show(exc.Message);
     
179. }
     
180. }
     
181. private void button2_Click(object sender, System.EventArgs e)
     
182. {
     
183. textBox1.Text = "";
     
184. }
     
185. }
     
186. }

复制代码

转自：http://www.jb51.net/article/52282.htm
这篇文章主要介绍了C#实现获取系统目录并以Tree树叉显示的方法,可以加深读者对于C#下数据结构实现方法的认识,需要的朋友可以参考下
本文讲述C#获取Windows系统目录，如何目录遍历以及将信息捆绑在TreeView中显示出来的实现方法，具体实现代码如下：

1. using System;
   
2. using System.Drawing;
   
3. using System.Collections;
   
4. using System.ComponentModel;
   
5. using System.Windows.Forms;
   
6. using System.Data;
   
7. using System.IO;
   
8. namespace 获取系统目录
   
9. {
   
10. public class Form1 : System.Windows.Forms.Form
    
11. {
    
12. private System.Windows.Forms.TreeView treeView1;
    
13. private System.ComponentModel.IContainer components;
    
14. private System.Windows.Forms.Button button2;
    
15. private System.Windows.Forms.Label label2;
    
16. private System.Windows.Forms.Button button1;
    
17. private System.Windows.Forms.TextBox textBox1;
    
18. private System.Windows.Forms.Label label1;
    
19. public Form1()
    
20. {
    
21. InitializeComponent();
    
22. FillTree(treeView1, true); // 显示所有文件夹以及文件
    
23. }
    
24. protected override void Dispose( bool disposing )
    
25. {
    
26. if( disposing )
    
27. {
    
28. if (components != null)
    
29. {
    
30. components.Dispose();
    
31. }
    
32. }
    
33. base.Dispose( disposing );
    
34. }
    
35. #region Windows 窗体设计器生成的代码
    
36. private void InitializeComponent()
    
37. {
    
38. this.textBox1 = new System.Windows.Forms.TextBox();
    
39. this.label2 = new System.Windows.Forms.Label();
    
40. this.label1 = new System.Windows.Forms.Label();
    
41. this.treeView1 = new System.Windows.Forms.TreeView();
    
42. this.button1 = new System.Windows.Forms.Button();
    
43. this.button2 = new System.Windows.Forms.Button();
    
44. this.SuspendLayout();
    
45. this.textBox1.Location = new System.Drawing.Point(280, 56);
    
46. this.textBox1.Multiline = true;
    
47. this.textBox1.Name = "textBox1";
    
48. this.textBox1.Size = new System.Drawing.Size(208, 192);
    
49. this.textBox1.TabIndex = 3;
    
50. this.textBox1.Text = "";
    
51. this.label2.AutoSize = true;
    
52. this.label2.Location = new System.Drawing.Point(280, 24);
    
53. this.label2.Name = "label2";
    
54. this.label2.Size = new System.Drawing.Size(116, 17);
    
55. this.label2.TabIndex = 4;
    
56. this.label2.Text = "文件夹或文件信息：";
    
57. this.label1.AutoSize = true;
    
58. this.label1.Location = new System.Drawing.Point(16, 24);
    
59. this.label1.Name = "label1";
    
60. this.label1.Size = new System.Drawing.Size(153, 17);
    
61. this.label1.TabIndex = 5;
    
62. this.label1.Text = "请选择一个文件夹或文件：";
    
63. this.treeView1.ImageIndex = -1;
    
64. this.treeView1.Location = new System.Drawing.Point(16, 56);
    
65. this.treeView1.Name = "treeView1";
    
66. this.treeView1.SelectedImageIndex = -1;
    
67. this.treeView1.Size = new System.Drawing.Size(184, 192);
    
68. this.treeView1.TabIndex = 6;
    
69. this.button1.Location = new System.Drawing.Point(216, 104);
    
70. this.button1.Name = "button1";
    
71. this.button1.Size = new System.Drawing.Size(48, 32);
    
72. this.button1.TabIndex = 7;
    
73. this.button1.Text = "显示";
    
74. this.button1.Click += new System.EventHandler(this.button1_Click);
    
75. this.button2.Location = new System.Drawing.Point(216, 168);
    
76. this.button2.Name = "button2";
    
77. this.button2.Size = new System.Drawing.Size(48, 32);
    
78. this.button2.TabIndex = 8;
    
79. this.button2.Text = "清空";
    
80. this.button2.Click += new System.EventHandler(this.button2_Click);
    
81. this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
    
82. this.ClientSize = new System.Drawing.Size(504, 277);
    
83. this.Controls.Add(this.button2);
    
84. this.Controls.Add(this.button1);
    
85. this.Controls.Add(this.treeView1);
    
86. this.Controls.Add(this.label1);
    
87. this.Controls.Add(this.label2);
    
88. this.Controls.Add(this.textBox1);
    
89. this.Name = "Form1";
    
90. this.Text = "Form1";
    
91. this.ResumeLayout(false);
    
92. }
    
93. #endregion
    
94. [STAThread]
    
95. static void Main()
    
96. {
    
97. Application.Run(new Form1());
    
98. }
    
99. // 填充目录和文件到 TreeView 控件中
    
100. // isSource 表示是否显示文件
     
101. private void FillTree(TreeView treeView,bool isSource)
     
102. {
     
103. treeView.Nodes.Clear(); // 清空
     
104. // 获取系统上的所有逻辑驱动器
     
105. string[] strDrives = Environment.GetLogicalDrives();
     
106. foreach(string rootDirectoryName in strDrives)
     
107. {
     
108. try
     
109. {
     
110. // 获取驱动器顶级目录列表
     
111. DirectoryInfo dir = new DirectoryInfo(rootDirectoryName);
     
112. 
     
113. // 如果获得的目录信息正确，则将它添加到 TreeView 控件中
     
114. if (dir.Exists == true)
     
115. {
     
116. TreeNode newNode = new TreeNode(rootDirectoryName);
     
117. treeView.Nodes.Add(newNode);
     
118. if (isSource)
     
119. {
     
120. GetSubDirectoryNodes(newNode, newNode.Text, true);
     
121. }
     
122. else
     
123. {
     
124. GetSubDirectoryNodes(newNode, newNode.Text, false);
     
125. }
     
126. }
     
127. }
     
128. catch(Exception e)
     
129. {
     
130. MessageBox.Show(e.Message);
     
131. }
     
132. }
     
133. }
     
134. // 遍历子目录
     
135. private void GetSubDirectoryNodes(TreeNode parentNode, string fullName, bool getFileNames)
     
136. {
     
137. DirectoryInfo dir = new DirectoryInfo(fullName);
     
138. DirectoryInfo[] subDirs = dir.GetDirectories();
     
139. // 为每一个子目录添加一个子节点
     
140. foreach(DirectoryInfo subDir in subDirs)
     
141. {
     
142. // 不显示隐藏文件夹
     
143. if((subDir.Attributes & FileAttributes.Hidden) != 0)
     
144. {
     
145. continue;
     
146. }
     
147. TreeNode subNode = new TreeNode(subDir.Name);
     
148. parentNode.Nodes.Add(subNode);
     
149. // 递归调用GetSubDirectoryNodes
     
150. GetSubDirectoryNodes(subNode, subDir.FullName, getFileNames);
     
151. }
     
152. // 获取目录中的文件
     
153. if(getFileNames)
     
154. {
     
155. FileInfo[] files = dir.GetFiles();
     
156. foreach(FileInfo file in files)
     
157. {
     
158. TreeNode fileNode = new TreeNode(file.Name);
     
159. parentNode.Nodes.Add(fileNode);
     
160. }
     
161. }
     
162. }
     
163. private void button1_Click(object sender, System.EventArgs e)
     
164. {
     
165. try
     
166. {
     
167. TreeNode selectedNode = treeView1.SelectedNode;
     
168. DirectoryInfo info = new DirectoryInfo(selectedNode.FullPath);
     
169. string [] strArray = new string[4];
     
170. strArray[0] = "完整路径名 : "+ info.FullName;
     
171. strArray[1] = "创建时间 : "+ info.CreationTime.ToString();
     
172. strArray[2] = "上次访问时间 : "+ info.LastAccessTime.ToString();
     
173. strArray[3] = "上次写入时间 : "+ info.LastWriteTime.ToString();
     
174. textBox1.Lines = strArray;
     
175. }
     
176. catch(Exception exc)
     
177. {
     
178. MessageBox.Show(exc.Message);
     
179. }
     
180. }
     
181. private void button2_Click(object sender, System.EventArgs e)
     
182. {
     
183. textBox1.Text = "";
     
184. }
     
185. }
     
186. }

复制代码