public bool Update(UserJoinToEventDto dto)
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("Update tblUserJoinToEvent set userID=@userID, eventID=@eventID where id=@id;", con);

            cmd.Parameters.Add("@id", SqlDbType.Int).Value         = dto.Id;
            cmd.Parameters.Add("@userID", SqlDbType.VarChar).Value = dto.UserID;
            cmd.Parameters.Add("@eventID", SqlDbType.Int).Value    = dto.EventID;
            int count = cmd.ExecuteNonQuery();

            con.Close();
            return(count == 1);
        }
        public bool Create(UserJoinToEventDto dto)
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("Insert Into tblUserJoinToEvent(id,userID,eventID) VALUES(@id,@userID,@eventID);", con);

            cmd.Parameters.Add("@id", SqlDbType.Int).Value         = dto.Id;
            cmd.Parameters.Add("@userID", SqlDbType.VarChar).Value = dto.UserID;
            cmd.Parameters.Add("@eventID", SqlDbType.Int).Value    = dto.EventID;
            int count = cmd.ExecuteNonQuery();

            con.Close();
            return(count == 1);
        }