递归遍历文件夹函数

 public void Dirs(string path)
        {
            DirectoryInfo dis = new DirectoryInfo(path);
            FileInfo[] files = dis.GetFiles();
            foreach (FileInfo fi in files)
            {
                i++;
                Application.DoEvents();
                this.label1.Text = i.ToString();
                GetSqlFile(fi.FullName, this.textBox1.Text + fi.DirectoryName.Substring(2), fi.FullName.Substring(fi.FullName.LastIndexOf("\\") + 1), 1024, 768);
            }
            if (dis.GetDirectories().Length > 0)
            {
                for (int i = 0; i < dis.GetDirectories().Length; i++)
                {
                    Dirs(dis.GetDirectories()[i].FullName);
                }
            }
        
         
        }