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[ASP.NET] C# gets the number of files in the specified folder and all file sizes

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Posted on 4/3/2015 4:05:08 PM | | |
  1. public static float length = 0;//文件总大小
  2. public int dirNum = 0; //文件目录个数
  3. public int fileNum = 0; //文件个数
  4. //绑定文件大小
  5. public void binder()
  6. {
  7. string fileName = Server.MapPath("Dir/" + Session["UserName"].ToString());
  8. length = Convert.ToSingle(GetDirectoryLength(fileName));
  9. string size = "0";
  10. if (length < 1024)
  11. {
  12. size = string.Format("{0:N0}", length) + "B";
  13. }
  14. else if (length > 1024)
  15. {
  16. if (length < 1048576)
  17. {
  18. size = string.Format("{0:N1}", length / 1024) + "KB";
  19. }
  20. else
  21. {
  22. size = string.Format("{0:N2}", length / 1048576) + "MB";
  23. }
  24. }
  25. Response.Write(size);
  26. }

  28. //获取文件夹大小总和
  29. public long GetDirectoryLength(string dirPath)
  30. {
  31. //判断给定的路径是否存在,如果不存在则退出
  32. if (!Directory.Exists(dirPath))
  33. return 0;
  34. long len = 0; //目录文件大小总和

  36. //定义一个DirectoryInfo对象
  37. DirectoryInfo di = new DirectoryInfo(dirPath);

  39. //通过GetFiles方法,获取di目录中的所有文件的大小
  40. foreach (FileInfo fi in di.GetFiles())
  41. {
  42. len += fi.Length;
  43. }
  44. fileNum += di.GetFiles().Length;

  46. //获取di中所有的文件夹,并存到一个新的对象数组中,以进行递归
  47. DirectoryInfo[] dis = di.GetDirectories();

  49. dirNum += dis.Length;

  51. if (dis.Length > 0)
  52. {

  54. for (int i = 0; i < dis.Length; i++)
  55. {
  56. len += GetDirectoryLength(dis[i].FullName);
  57. }
  58. }
  59. return len;

  61. }
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