CapDemo.QuestionSetting.btn_ImportQuestion_Click C# (CSharp) Метод

        private void btn_ImportQuestion_Click(object sender, EventArgs e)
        {
            if (lb_Phase.SelectedItem==null)
            {
                MessageBox.Show("Vui lòng chọn giai đoạn","Cảnh báo", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
            else
            {
                int idPhase = 0;
                Phase.IDContest = IdContest;
                List<Phase> ListPhase;
                ListPhase = phaseBL.GetPhaseByIDContest(Phase);
                if (ListPhase != null)
                {
                    for (int i = 0; i < ListPhase.Count; i++)
                    {
                        if (ListPhase.ElementAt(i).NamePhase == lb_Phase.SelectedItem.ToString())
                        {
                            idPhase = ListPhase.ElementAt(i).IDPhase;
                        }
                    }
                }

                GetQuestion getQuestion = new GetQuestion(idPhase,IdContest);
                getQuestion.ShowDialog();
                load();
            }
        }