//修改
        protected void btnAdd_Click(object sender, EventArgs e)
        {
            if (txtGradeCheckItemName.Text.Trim().Length == 0)
            {
                Javascript.GoHistory(-1, "请输入成绩审核单项名称!", Page);
            }
            else
            {
                DalOperationAboutGradeCheck dalOperationAboutGradeCheck = new DalOperationAboutGradeCheck();
                StudentsGradeCheck model = new StudentsGradeCheck();
                model.gradeCheckItemName = txtGradeCheckItemName.Text.Trim();
                model.gradeCheckItemDefaultValue = txtGradeCheckItemDefaultValue.Text.Trim();
                model.displayOrder = int.Parse(txtDisplayOrder.Text.Trim());

                List<string> items = new List<string>();
                for (int i = 0; i < ddlTermYears.Items.Count; i++)
                {
                    ListItem _item = ddlTermYears.Items[i];
                    if (_item.Selected)
                    {
                        items.Add(_item.Value);
                    }
                }

                model.termYears = string.Join(",", items).Trim();

                try
                {

                    dalOperationAboutGradeCheck.AddGradeCheckItems(model);//修改
                    Javascript.RefreshParentWindow("添加成绩审核单项成功!", "/Administrator/StudentManager.aspx?fragment=5", Page);
                }
                catch (Exception ex)
                {
                    MongoDBLog.LogRecord(ex);
                    Javascript.GoHistory(-1, "添加成绩审核单项失败,请检查格式是否有误!", Page);
                }

            }
        }