use classes in System.IO, or seeMy Explorer In C#
http://www.thecodeproject.com/csharp/My_Explorer.asp

解决方案 »

  1.   

    look this:using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.Windows.Forms;
    using System.Data;
    using System.IO;namespace FolderBrowser
    {
    /// <summary>
    /// Summary description for Form1.
    /// </summary>
    public class FolderDialog : System.Windows.Forms.Form
    {
            private System.Windows.Forms.ImageList fileIconList;
            private System.Windows.Forms.TreeView FolderTree;
            private System.ComponentModel.IContainer components; public FolderDialog()
    {
    //
    // Required for Windows Form Designer support
    //
    InitializeComponent(); //
    // TODO: Add any constructor code after InitializeComponent call
    //
    } /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected override void Dispose( bool disposing )
    {
    if( disposing )
    {
    if (components != null) 
    {
    components.Dispose();
    }
    }
    base.Dispose( disposing );
    } #region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
                this.components = new System.ComponentModel.Container();
                System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(FolderDialog));
                this.fileIconList = new System.Windows.Forms.ImageList(this.components);
                this.FolderTree = new System.Windows.Forms.TreeView();
                this.SuspendLayout();
                // 
                // fileIconList
                // 
                this.fileIconList.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit;
                this.fileIconList.ImageSize = new System.Drawing.Size(16, 16);
                this.fileIconList.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("fileIconList.ImageStream")));
                this.fileIconList.TransparentColor = System.Drawing.Color.Transparent;
                // 
                // FolderTree
                // 
                this.FolderTree.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
                    | System.Windows.Forms.AnchorStyles.Left) 
                    | System.Windows.Forms.AnchorStyles.Right);
                this.FolderTree.ImageList = this.fileIconList;
                this.FolderTree.Name = "FolderTree";
                this.FolderTree.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
                                                                                       new System.Windows.Forms.TreeNode("我的电脑", 0, 0)});
                this.FolderTree.Size = new System.Drawing.Size(470, 350);
                this.FolderTree.TabIndex = 0;
                this.FolderTree.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.FolderTree_AfterSelect);
                // 
                // FolderDialog
                // 
                this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
                this.ClientSize = new System.Drawing.Size(472, 353);
                this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                              this.FolderTree});
                this.Name = "FolderDialog";
                this.Text = "浏览我的电脑";
                this.ResumeLayout(false);        }
    #endregion /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
    Application.Run(new FolderDialog());
    }        private void FolderTree_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
            {
                if(e.Node.Text.ToString()!="我的电脑")
                    EnumDirectories(e.Node);
                else
                    EnumDrives(e.Node);
            }        private void EnumDrives(TreeNode ParentNode)
            {
                if(ParentNode.Nodes.Count==0)
                {    
                    foreach(string drive in Directory.GetLogicalDrives())
                    {
                        FolderTree.SelectedNode=ParentNode;
                        TreeNode TempNode=new TreeNode();
                        TempNode.Text=drive.Substring(0,drive.Length-1);
                        TempNode.Tag=drive;
                        TempNode.ImageIndex=1;
                        TempNode.SelectedImageIndex=1; 
                        FolderTree.SelectedNode.Nodes.Add(TempNode);
                        FolderTree.SelectedNode.Nodes[FolderTree.SelectedNode.Nodes.Count-1].EnsureVisible();
                    }
                }
            }        private void EnumDirectories(TreeNode ParentNode)
            {
                FolderTree.SelectedNode=ParentNode;
                string DirectoryPath=ParentNode.Tag.ToString();
                if(ParentNode.Nodes.Count==0)
                {
                    if(DirectoryPath.Substring(DirectoryPath.Length-1)!=@"\")
                        DirectoryPath+=@"\";
                    try
                    {
                        foreach(string directory in Directory.GetDirectories(DirectoryPath))
                        {
                            TreeNode TempNode=new TreeNode();
                            TempNode.Text=directory.Substring(directory.LastIndexOf(@"\")+1);
                            TempNode.Tag=directory;
                            TempNode.ImageIndex=3;
                            TempNode.SelectedImageIndex=2;
                            FolderTree.SelectedNode.Nodes.Add(TempNode);
                            FolderTree.SelectedNode.Nodes[FolderTree.SelectedNode.Nodes.Count-1].EnsureVisible();
                        }
                    }
                    catch(Exception)
                    {
                    }
                }
            }
    }
    }