Getting the folder name from a path

Question

string path    C  folder1 folder2 file txt     What objects or methods could I use that would give me a result of folder2

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Try this   string filename     C  folder1 folder2 file txt   string FolderName   new DirectoryInfo System IO Path GetDirectoryName filename   Name

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Simple  amp  clean  Only uses System IO FileSystem - works like a charm   string path    C  folder1 folder2 file txt   string folder   new DirectoryInfo path  Name

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Below code helps to get folder name only     public ObservableCollection items   new ObservableCollection        try                               string   folderPaths   Directory GetDirectories stemp                   items Clear                    foreach  string s in folderPaths                                        items Add new gridItems   foldername   s Remove 0  s LastIndexOf         1   folderpath   s                                                   catch  Exception a                                 public class gridItems               public string foldername   get  set            public string folderpath   get  set

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This is ugly but avoids allocations   private static string GetFolderName string path        var end   -1      for  var i   path Length  --i  gt   0                 var ch   path i           if  ch    System IO Path DirectorySeparatorChar                ch    System IO Path AltDirectorySeparatorChar                ch    System IO Path VolumeSeparatorChar                        if  end  gt  0                                return path Substring i   1  end - i - 1                              end   i                       if  end  gt  0                return path Substring 0  end              return path

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I used this code snippet to get the directory for a path when no filename is in the path   for example  c  tmp test visual    string dir     c  tmp test visual   Console WriteLine dir Replace Path GetDirectoryName dir    Path DirectorySeparatorChar          Output      visual

User · Answer

I would probably use something like   string path    C  folder1 folder2 file txt   string lastFolderName   Path GetFileName  Path GetDirectoryName  path        The inner call to GetDirectoryName will return the full path  while the outer call to GetFileName   will return the last path component - which will be the folder name   This approach works whether or not the path actually exists  This approach  does however  rely on the path initially ending in a filename  If it s unknown whether the path ends in a filename or folder name - then it requires that you check the actual path to see if a file folder exists at the location first  In that case  Dan Dimitru s answer may be more appropriate

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It s also important to note that while getting a list of directory names in a loop  the DirectoryInfo class gets initialized once thus allowing only first-time call  In order to bypass this limitation  ensure you use variables within your loop to store any individual directory s name   For example  this sample code loops through a list of directories within any parent directory while adding each found directory-name inside a List of string type    C    string   parentDirectory   Directory GetDirectories   yourpath    List lt string gt  directories   new List lt string gt      foreach  var directory in parentDirectory           Notice I ve created a DirectoryInfo variable      DirectoryInfo dirInfo   new DirectoryInfo directory           And likewise a name variable for storing the name         If this is not added  only the first directory will        be captured in the loop  the rest won t      string name   dirInfo Name          Finally we add the directory name to our defined List      directories Add name        VB NET   Dim parentDirectory   As String   Directory GetDirectories   yourpath   Dim directories As New List Of String     For Each directory In parentDirectory        Notice I ve created a DirectoryInfo variable      Dim dirInfo As New DirectoryInfo directory         And likewise a name variable for storing the name        If this is not added  only the first directory will       be captured in the loop  the rest won t      Dim name As String   dirInfo Name        Finally we add the directory name to our defined List      directories Add name   Next directory

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var fullPath     C  folder1 folder2 file txt   var lastDirectory   Path GetDirectoryName fullPath  Split       LastOrDefault

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string Folder   Directory GetParent path  Name

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DirectoryInfo does the job to strip directory name  string my path     C  Windows System32   DirectoryInfo dir info   new DirectoryInfo my path   string directory   dir info Name      System32

[c#] Getting the folder name from a path

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