Eliminar el último carácter si es DirectorySeparatorChar con C#

Question

Necesito extraer la información de ruta usando Path.GetFileName(), y esta función no funciona cuando el último carácter de la cadena de entrada es DirectorySeparatorChar ('/' o '\').

Se me ocurrió este código, pero es demasiado largo. ¿Hay una mejor manera de hacerlo?

string lastCharString = fullPath.Substring (fullPath.Length-1); 
char lastChar = lastCharString[0]; 

if (lastChar == Path.DirectorySeparatorChar) { 
    fullPath = fullPath.Substring(0, fullPath.Length-1); 
} 

Answer 1

fullPath = fullPath.TrimEnd(Path.DirectorySeparatorChar); 

Answer 2

fullPath = Path.GetFileName(
    fullPath.Split(
     new [] { Path.DirectorySeparatorChar }, 
     StringSplitOptions.RemoveEmptyEntries 
    ).Last() 
) 

Answer 3

string path1 = @"c:\directory\"; 
string path2 = @"c:\directory\file.txt"; 
string path3 = @"c:\directory"; 

Console.WriteLine(Path.Combine(Path.GetDirectoryName(path1), Path.GetFileName(path1))); 
Console.WriteLine(Path.Combine(Path.GetDirectoryName(path2), Path.GetFileName(path2))); 
Console.WriteLine(Path.Combine(Path.GetDirectoryName(path3), Path.GetFileName(path3))); 

Da:

c:\directory 
c:\directory\file.txt 
c:\directory 

espero que ayude.

Answer 4

while(fullPath.EndsWith(Path.DirectorySeparatorChar.ToString())){ 
    fullPath = fullPath.Substring(0, fullPath.Length-1); 
} 

Answer 5

// If the fullPath is not a root directory 
if (Path.GetDirectoryName(fullPath) != null) 
    fullPath = fullPath.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);