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  1. /* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
  2. *
  3. * Permission is hereby granted, free of charge, to any person obtaining a copy
  4. * of this software and associated documentation files (the "Software"), to deal
  5. * in the Software without restriction, including without limitation the rights
  6. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  7. * copies of the Software, and to permit persons to whom the Software is
  8. * furnished to do so, subject to the following conditions:
  9. *
  10. * The above copyright notice and this permission notice shall be included in
  11. * all copies or substantial portions of the Software.
  12. *
  13. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19. * THE SOFTWARE.
  20. */
  21. using System;
  22. using System.IO;
  23. using System.Linq;
  24. using System.Security;
  25. namespace Alphaleonis.Win32.Filesystem
  26. {
  27. partial class DirectoryInfo
  28. {
  29. #region .NET
  30. /// <summary>Returns the subdirectories of the current directory.</summary>
  31. /// <returns>An array of <see cref="DirectoryInfo"/> objects.</returns>
  32. /// <remarks>If there are no subdirectories, this method returns an empty array. This method is not recursive.</remarks>
  33. /// <remarks>
  34. /// The EnumerateDirectories and GetDirectories methods differ as follows: When you use EnumerateDirectories, you can start enumerating the collection of names
  35. /// before the whole collection is returned; when you use GetDirectories, you must wait for the whole array of names to be returned before you can access the array.
  36. /// Therefore, when you are working with many files and directories, EnumerateDirectories can be more efficient.
  37. /// </remarks>
  38. /// <exception cref="ArgumentException"/>
  39. /// <exception cref="ArgumentNullException"/>
  40. /// <exception cref="DirectoryNotFoundException"/>
  41. /// <exception cref="IOException"/>
  42. /// <exception cref="NotSupportedException"/>
  43. /// <exception cref="UnauthorizedAccessException"/>
  44. [SecurityCritical]
  45. public DirectoryInfo[] GetDirectories()
  46. {
  47. return Directory.EnumerateFileSystemEntryInfosCore<DirectoryInfo>(Transaction, LongFullName, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.Folders, PathFormat.LongFullPath).ToArray();
  48. }
  49. /// <summary>Returns an array of directories in the current <see cref="DirectoryInfo"/> matching the given search criteria.</summary>
  50. /// <returns>An array of type <see cref="DirectoryInfo"/> matching <paramref name="searchPattern"/>.</returns>
  51. /// <remarks>
  52. /// The EnumerateDirectories and GetDirectories methods differ as follows: When you use EnumerateDirectories, you can start enumerating the collection of names
  53. /// before the whole collection is returned; when you use GetDirectories, you must wait for the whole array of names to be returned before you can access the array.
  54. /// Therefore, when you are working with many files and directories, EnumerateDirectories can be more efficient.
  55. /// </remarks>
  56. /// <exception cref="ArgumentException"/>
  57. /// <exception cref="ArgumentNullException"/>
  58. /// <exception cref="DirectoryNotFoundException"/>
  59. /// <exception cref="IOException"/>
  60. /// <exception cref="NotSupportedException"/>
  61. /// <exception cref="UnauthorizedAccessException"/>
  62. /// <param name="searchPattern">
  63. /// The search string to match against the names of directories in path.
  64. /// This parameter can contain a combination of valid literal path and wildcard
  65. /// (<see cref="Path.WildcardStarMatchAll"/> and <see cref="Path.WildcardQuestion"/>) characters, but does not support regular expressions.
  66. /// </param>
  67. [SecurityCritical]
  68. public DirectoryInfo[] GetDirectories(string searchPattern)
  69. {
  70. return Directory.EnumerateFileSystemEntryInfosCore<DirectoryInfo>(Transaction, LongFullName, searchPattern, DirectoryEnumerationOptions.Folders, PathFormat.LongFullPath).ToArray();
  71. }
  72. /// <summary>Returns an array of directories in the current <see cref="DirectoryInfo"/> matching the given search criteria and using a value to determine whether to search subdirectories.</summary>
  73. /// <returns>An array of type <see cref="DirectoryInfo"/> matching <paramref name="searchPattern"/>.</returns>
  74. /// <remarks>If there are no subdirectories, or no subdirectories match the searchPattern parameter, this method returns an empty array.</remarks>
  75. /// <remarks>
  76. /// The EnumerateDirectories and GetDirectories methods differ as follows: When you use EnumerateDirectories, you can start enumerating the collection of names
  77. /// before the whole collection is returned; when you use GetDirectories, you must wait for the whole array of names to be returned before you can access the array.
  78. /// Therefore, when you are working with many files and directories, EnumerateDirectories can be more efficient.
  79. /// </remarks>
  80. /// <exception cref="ArgumentException"/>
  81. /// <exception cref="ArgumentNullException"/>
  82. /// <exception cref="DirectoryNotFoundException"/>
  83. /// <exception cref="IOException"/>
  84. /// <exception cref="NotSupportedException"/>
  85. /// <exception cref="UnauthorizedAccessException"/>
  86. /// <param name="searchPattern">
  87. /// The search string to match against the names of directories in path.
  88. /// This parameter can contain a combination of valid literal path and wildcard
  89. /// (<see cref="Path.WildcardStarMatchAll"/> and <see cref="Path.WildcardQuestion"/>) characters, but does not support regular expressions.
  90. /// </param>
  91. /// <param name="searchOption">
  92. /// One of the <see cref="SearchOption"/> enumeration values that specifies whether the <paramref name="searchOption"/>
  93. /// should include only the current directory or should include all subdirectories.
  94. /// </param>
  95. [SecurityCritical]
  96. public DirectoryInfo[] GetDirectories(string searchPattern, SearchOption searchOption)
  97. {
  98. var options = DirectoryEnumerationOptions.Folders | ((searchOption == SearchOption.AllDirectories) ? DirectoryEnumerationOptions.Recursive : 0);
  99. return Directory.EnumerateFileSystemEntryInfosCore<DirectoryInfo>(Transaction, LongFullName, searchPattern, options, PathFormat.LongFullPath).ToArray();
  100. }
  101. #endregion // .NET
  102. }
  103. }