private void LoadNextModule(int level, int number) { //validate numbers if (number < 9) { //prep grid nextGrid.ClearGrid(); //file path string string file = "Level_" + level.ToString("D2") + "_Module_" + number.ToString("D2") + ".mod"; //load next module nextGrid.LoadNextModule(file); } else if (number == 9) { //prep grid nextGrid.ClearGrid(); //file path string string file = "Level_00_Module_01.mod"; //load end module nextGrid.LoadNextModule(file); } }