Path::HasExtension Method (String^)
Determines whether a path includes a file name extension.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- path
-
Type:
System::String^
The path to search for an extension.
Return Value
Type: System::Booleantrue if the characters that follow the last directory separator (\\ or /) or volume separator (:) in the path include a period (.) followed by one or more characters; otherwise, false.
| Exception | Condition |
|---|---|
| ArgumentException | path contains one or more of the invalid characters defined in GetInvalidPathChars. |
Starting from the end of path, this method searches for a period (.) followed by at least one character. If this pattern is found before a DirectorySeparatorChar, AltDirectorySeparatorChar, or VolumeSeparatorChar character is encountered, this method returns true.
For a list of common I/O tasks, see Common I-O Tasks.
The following code example demonstrates the use of the HasExtension method.
String^ fileName1 = "myfile.ext"; String^ fileName2 = "mydir\\myfile"; String^ path = "C:\\mydir.ext\\"; bool result; result = Path::HasExtension( fileName1 ); Console::WriteLine( "HasExtension('{0}') returns {1}", fileName1, result.ToString() ); result = Path::HasExtension( fileName2 ); Console::WriteLine( "HasExtension('{0}') returns {1}", fileName2, result.ToString() ); result = Path::HasExtension( path ); Console::WriteLine( "HasExtension('{0}') returns {1}", path, result.ToString() ); // This code produces output similar to the following: // // HasExtension('myfile.ext') returns True // HasExtension('mydir\myfile') returns False // HasExtension('C:\mydir.ext\') returns False
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1