public List<CourseModel> GetAllCourses()
		{
			DataTable dt = new DataTable();

			using (MySqlCommand command = new MySqlCommand())
			{
				dt = GetMultipleQuery(CourseStringsMySql.GetAllCourses());
			}

			List<CourseModel> arrCourse = new List<CourseModel>();

			foreach (DataRow ms in dt.Rows)
			{
				arrCourse.Add(CourseModel.ToObject(ms));
			}

			return arrCourse;
		}