IO文件管理系统

- 日理万妓 2021-12-22 12:47 330阅读 0赞

enum DriverImage
        {
            CDRom = 0,
            Disk = 1,
            USB = 2,
            Folder = 3
    
        }
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
            private void Form1_Load(object sender, EventArgs e)
            {
                this.AutoSizeMode = AutoSizeMode.GrowAndShrink;
                this.Left = Screen.PrimaryScreen.WorkingArea.Width / 2 - this.Width / 2;
                this.Top = Screen.PrimaryScreen.WorkingArea.Height / 2 - this.Height / 2;
            }
            private void initTreeMain()
            {
                //光驱
                DriveInfo[] driveList = DriveInfo.GetDrives();
                foreach (DriveInfo item in driveList)
                {
                    TreeNode driverNode = null;
                    switch (item.DriveType)
                    {
                        case DriveType.Removable:  //可移动磁盘
                            driverNode = SetDriverNode(item, (int)DriverImage.USB);
                            break;
                        case DriveType.Fixed:    //硬盘
                            driverNode = SetDriverNode(item, (int)DriverImage.Disk);
                            break;
                        case DriveType.CDRom: //光盘
                            driverNode = SetDriverNode(item, (int)DriverImage.CDRom);
                            break;
                        default:
                            break;
                    }
                }
                //根据上面的节点寻找目录
                foreach (TreeNode node in treeMain.Nodes)
                {
                    if (node.Tag.ToString() == "E:\\")
                    {
                        LoadTreeNodes(node);
                    }
                }
    
            }
            /// <summary>
            /// 
            /// </summary>
            /// <param name="item">根据item设置节点信息</param>
            /// <param name="imageType">节点的图片索引类型</param>
            /// <returns></returns>
            TreeNode SetDriverNode(DriveInfo item, int imageType)
            {
                TreeNode driverNode = treeMain.Nodes.Add(item.VolumeLabel + "(" + item.Name.Split('\\')[0] + ")");
                driverNode.ImageIndex = imageType;
                driverNode.SelectedImageIndex = imageType;
                driverNode.Tag = item.RootDirectory;
                return driverNode;
            }
            /// <summary>
            /// 绑定根节点中的文件夹
            /// </summary>
            /// <param name="node">根节点</param>
            void LoadTreeNodes(TreeNode node)
            {
                DirectoryInfo directory = new DirectoryInfo(node.Tag.ToString());
                DirectoryInfo[] infos = directory.GetDirectories();
                foreach (DirectoryInfo info in infos)
                {
                    //如果找到是隐藏，临时，系统。 则后面不执行。重新开始寻找
    
                    if (info.Attributes == FileAttributes.Hidden || info.Attributes == FileAttributes.Temporary || info.Attributes == FileAttributes.System)
                    {
                        continue;
                    }
                    if (info.Attributes == FileAttributes.Directory)
                    {
                        TreeNode childNode = node.Nodes.Add(info.Name);
                        childNode.ImageIndex = (int)DriverImage.Folder;
                        childNode.SelectedImageIndex = (int)DriverImage.Folder;
                        childNode.Tag = info.FullName;
                        LoadChildNodes(childNode);
                    }
                }
            }
            //使用递归依次寻找其下
            void LoadChildNodes(TreeNode node)
            {
                DirectoryInfo directory = new DirectoryInfo(node.Tag.ToString());
                if (directory.FullName.Length > 240)
                {
                    return;
                }
                DirectoryInfo[] infos = directory.GetDirectories();
                foreach (DirectoryInfo info in infos)
                {
                    TreeNode childNode = node.Nodes.Add(info.Name);
                    childNode.ImageIndex = (int)DriverImage.Folder;
                    childNode.SelectedImageIndex = (int)DriverImage.Folder;
                    childNode.Tag = info.FullName;
                    LoadChildNodes(childNode);
                }
            }