Path.GetFileName Method

Source:

Path.cs

Source:

Path.cs

Source:

Path.cs

Source:

Path.cs

public:
 static ReadOnlySpan<char> GetFileName(ReadOnlySpan<char> path);

public static ReadOnlySpan<char> GetFileName(ReadOnlySpan<char> path);

static member GetFileName : ReadOnlySpan<char> -> ReadOnlySpan<char>

Public Shared Function GetFileName (path As ReadOnlySpan(Of Char)) As ReadOnlySpan(Of Char)

Parameters

Returns

The characters after the last directory separator character in path.

Remarks

The returned read-only span contains the characters of the path that follow the last separator in path. If the last character in path is a volume or directory separator character, the method returns ReadOnlySpan<T>.Empty. If path contains no separator character, the method returns path.

See also

• File path formats on Windows systems

Source:

Path.cs

Source:

Path.cs

Source:

Path.cs

Source:

Path.cs

public:
 static System::String ^ GetFileName(System::String ^ path);

public static string GetFileName(string path);

public static string? GetFileName(string? path);

static member GetFileName : string -> string

Public Shared Function GetFileName (path As String) As String

Parameters

Returns

The characters after the last directory separator character in path. If the last character of path is a directory or volume separator character, this method returns Empty. If path is null, this method returns null.

Exceptions

Examples

The following example demonstrates the behavior of the GetFileName method on a Windows-based desktop platform.

string fileName = @"C:\mydir\myfile.ext";
string path = @"C:\mydir\";
string result;

result = Path.GetFileName(fileName);
Console.WriteLine("GetFileName('{0}') returns '{1}'",
    fileName, result);

result = Path.GetFileName(path);
Console.WriteLine("GetFileName('{0}') returns '{1}'",
    path, result);

// This code produces output similar to the following:
//
// GetFileName('C:\mydir\myfile.ext') returns 'myfile.ext'
// GetFileName('C:\mydir\') returns ''

Dim fileName As String = "C:\mydir\myfile.ext"
Dim pathname As String = "C:\mydir\"
Dim result As String

result = Path.GetFileName(fileName)
Console.WriteLine("GetFileName('{0}') returns '{1}'", fileName, result)

result = Path.GetFileName(pathname)
Console.WriteLine("GetFileName('{0}') returns '{1}'", pathname, result)

' This code produces output similar to the following:
'
' GetFileName('C:\mydir\myfile.ext') returns 'myfile.ext'
' GetFileName('C:\mydir\') returns ''

Remarks

The returned value is null if the file path is null.

The separator characters used to determine the start of the file name are DirectorySeparatorChar and AltDirectorySeparatorChar.

Because \ is a legal file name on Unix, GetFileName running under Unix-based platforms cannot correctly return the file name from a Windows-based path like C:\mydir\myfile.ext, but GetFileName running under Windows-based platforms can correctly return the file name from a Unix-based path like /tmp/myfile.ext, so the behavior of the GetFileName method is not strictly the same on Unix-based and Windows-based platforms.

For a list of common I/O tasks, see Common I/O Tasks.

See also

• File path formats on Windows systems
• File and Stream I/O
• How to: Read Text from a File
• How to: Write Text to a File