C#遍历文件夹问题

Question

有如下代码： public partial class Form1 : Form
    {
        public Form1()
        {
            
            InitializeComponent();
        }
        public static long GetDirSize(String DirStr) {
            DirectoryInfo Dirinfo = new DirectoryInfo(DirStr);
            long FolderSize = 0;
            foreach (FileSystemInfo Fsi in Dirinfo.GetFileSystemInfos()) {
                if (Fsi.Attributes.ToString().ToLower() == "directory")
                {
                    FolderSize += GetDirSize(Fsi.FullName);
                }
                else {
                    if (File.Exists(Fsi.ToString()))
                    {
                        FileInfo fif = new FileInfo(Fsi.FullName);
                        FolderSize += fif.Length;
                    }
                }
            }
            return FolderSize;
        }        private void button1_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog()==DialogResult.OK) {
                textBox1.Text = folderBrowserDialog1.SelectedPath;
            }
        }        private void button2_Click(object sender, EventArgs e)
        {
            DirectoryInfo dir = new DirectoryInfo(textBox1.Text);
            FileInfo[] files = dir.GetFiles();
            DirectoryInfo[] directors = dir.GetDirectories();
            String Filddir="";
            foreach ( FileInfo arfiles in files ){
                if(Filddir==""){
                    Filddir=arfiles.ToString()+"|"+arfiles.Length;
                }
                else{
                    Filddir = Filddir + "," + arfiles.ToString()+"|"+arfiles.Length;
                }
            }
            foreach (DirectoryInfo dirinfo in directors) {
                Filddir = Filddir + ",文件夹：" + dirinfo.ToString() + "|" + GetDirSize(dirinfo.FullName);
            }
            richTextBox1.Text = Filddir.ToString();
            char[] splstr ={ ',','|' };
            String[] arrstr = Filddir.Split(splstr);
            dataGridView1.DataSource = arrstr;
            
        }
    }我的目的是将获得的的数组放入datagridview里，分位2列，一列是文件或者文件夹的名字，另一列为对应的文件或者文件夹大小，请教怎么弄，还有，如果路径里面文件太多，会死机跳出，这问题怎么解决？谢谢！

Answer 1

如果非要区分的话，建议用键值对即可，文件夹或文件名字就是key，value来区分文件夹或文件。不过，一般来说，没有一次性全部读取的，这样肯定有问题。你可以采用递归方式，当点击文件夹的时候，再读取文件夹下面的所有子文件夹和文件进行绑定即可。我们实现目录树，都是通过不同的图标来区分的。

Answer 2

看一下 下面的例子吧。 private void LoadLocalPathTree()
        {
            //获取当前服务器上所有的磁盘分区
            string[] driverList = Directory.GetLogicalDrives();
            DriveInfo driverInfo = null;
            //目录浏览
            for (int i = 0; i < driverList.Length; i++)
            {
                driverInfo = new DriveInfo(driverList[i]);
                if (driverInfo.DriveType == DriveType.Fixed)
                {
                    TreeNode node = new TreeNode();
                    node.Name = driverList[i];
                    node.Text = driverList[i];
                    node.ImageIndex = 4;
                    node.SelectedImageIndex = 4;
                    this.tvTree.Nodes.Add(node);
                }
            }
            this.tvTree.SelectedNode = this.tvTree.Nodes[0];
        }
        //目录子节点
        private void AddNode(string path, TreeNode node)
        {
            DirectoryInfo info = new DirectoryInfo(path);
            //包含文件夹
            DirectoryInfo[] dirList = info.GetDirectories();
            for (int i = 0; i < dirList.Length; i++)
            {
                string name = dirList[i].Name;
                bool isExists = false;
                foreach (TreeNode tn in node.Nodes)
                {
                    if (tn.Text == name)
                    {
                        isExists = true;
                        break;
                    }
                }                if (name != "System Volume Information" && !isExists)
                {
                    TreeNode subNode = new TreeNode(name);
                    subNode.ImageIndex = 1;
                    subNode.SelectedImageIndex = 2;
                    node.Nodes.Add(subNode);
                }
            }
            //包含文件
            FileInfo[] fList = info.GetFiles();
            for (int i = 0; i < fList.Length; i++)
            {                
                    string name = fList[i].Name;
                    bool isExists = false;
                    foreach (TreeNode tn in node.Nodes)
                    {
                        if (tn.Text == name)
                        {
                            isExists = true;
                            break;
                        }
                    }                    if (!isExists)
                    {
                        TreeNode subNode = new TreeNode(name);
                        subNode.ImageIndex = 3;
                        subNode.SelectedImageIndex = 3;
                        node.Nodes.Add(subNode);
                    }
                }
        }        private void tvTree_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (((TreeView)sender).SelectedNode.ImageIndex != 3)
                AddNode(this.tvTree.SelectedNode.FullPath, this.tvTree.SelectedNode);
            this.tvTree.SelectedNode.Expand();
        }

Answer 3

http://www.codeproject.com/KB/miscctrl/FileBrowser.aspx