c# - Getting file names without extensions

You can use Path.GetFileNameWithoutExtension:

foreach (FileInfo fi in smFiles) {     builder.Append(Path.GetFileNameWithoutExtension(fi.Name));     builder.Append(", "); } 

Although I am surprised there isn't a way to get this directly from the FileInfo (or at least I can't see it).

Use Path.GetFileNameWithoutExtension().

This solution also prevents the addition of a trailing comma.

var filenames = String.Join(                     ", ",                     Directory.GetFiles(@"c:\", "*.txt")                        .Select(filename =>                             Path.GetFileNameWithoutExtension(filename))); 

I dislike the DirectoryInfo, FileInfo for this scenario.

DirectoryInfo and FileInfo collect more data about the folder and the files than is needed so they take more time and memory than necessary.

Path.GetFileNameWithoutExtension(file); 

This returns the file name only without the extension type. You can also change it so you get both name and the type of file

 Path.GetFileName(FileName); 

source:https://msdn.microsoft.com/en-us/library/system.io.path(v=vs.110).aspx

Use Path.GetFileNameWithoutExtension. Path is in System.IO namespace.