public static void AddNewExercice(TypeOfExercicies Ex)
 {
     Conn.Open();
         string query = String.Format("Insert into [dbo].[TypeOfExercices](Name) Values('{0}')", Ex.GetExName());
         command = new SqlCommand(query, Conn);
         command.ExecuteNonQuery();
         Conn.Close();
 }
        public static bool ExerciceExists(TypeOfExercicies ex)
        {
            bool Ok = true;

                Conn.Open();
                string query = String.Format("Select count(*) from [dbo].[TypeOfExercices] where Name='{0}'", ex.GetExName());
                command = new SqlCommand(query, Conn);
                if (Convert.ToInt32(command.ExecuteScalar()) >= 1)
                    Ok = true;
                else
                    Ok = false;

                Conn.Close();

            return Ok;
        }