private void WriteToFolder(ImageMatrix matrix, char c, string appendFolder) { int number = 0; string file; if (c == '.') { file = "dot"; } else if (c == ',') { file = "coma"; } else { file = c.ToString(); } file = Path.Combine(appendFolder, file); while (File.Exists(file + number.ToString())) { number++; } matrix.SaveMatrixToFile(file + number.ToString()); }