HelloWorld.DefaultNameService.Initialize C# (CSharp) Method

        private void Initialize()
        {
            using ( var file = File.Open( dataFilepath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None ) )
              {
            var reader = new StreamReader( file, Encoding.UTF8 );
            allocatedNames = new HashSet<string>( reader.ReadToEnd().Split( new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries ), StringComparer.OrdinalIgnoreCase );

            file.SetLength( 0 );

            var writer = new StreamWriter( file, Encoding.UTF8 );
            writer.Write( string.Join( "\n", allocatedNames ) );
            writer.Flush();
              }
        }