Improved settings

FileManager/UNTESTED/FileUtility.cs

@@ -1,32 +1,10 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 
 namespace FileManager
 {
     public static class FileUtility
     {
-        // a replacement for File.Exists() which allows long paths
-        // not needed in .net-core
-        public static bool FileExists(string path)
-        {
-            var basic = File.Exists(path);
-            if (basic)
-                return true;
-
-            // character cutoff is usually 269 but this isn't a hard number. there are edgecases which shorted the threshold
-            if (path.Length < 260)
-                return false;
-
-            // try long name prefix:
-            //   \\?\
-            // https://blogs.msdn.microsoft.com/jeremykuhne/2016/06/21/more-on-new-net-path-handling/
-            path = @"\\?\" + path;
-
-            return File.Exists(path);
-        }
-
         public static string GetValidFilename(string dirFullPath, string filename, string extension, params string[] metadataSuffixes)
         {
             if (string.IsNullOrWhiteSpace(dirFullPath))
@@ -51,7 +29,7 @@ namespace FileManager
             // ensure uniqueness
             var fullfilename = Path.Combine(dirFullPath, filename + extension);
             var i = 0;
-            while (FileExists(fullfilename))
+            while (File.Exists(fullfilename))
                 fullfilename = Path.Combine(dirFullPath, filename + $" ({++i})" + extension);
 
             return fullfilename;