private void CourseAdd_Click(object sender, EventArgs e)//添加按钮功能 { Course course = new Course() { cno = Cno.Text, cname = Cname.Text, credit = Credit.Text, category = Category.Text, deptno = Deptno.Text }; CourseBLL courseBLL = new CourseBLL(); #region 添加 if (CourseAdd.Text.Equals("添加")) { if (courseBLL.Add(course)) { MessageBox.Show("添加成功"); LoadCourseList(); } else { MessageBox.Show("添加失败"); } } #endregion #region 修改 else { if (courseBLL.Edit(course)) { MessageBox.Show("修改成功"); LoadCourseList(); Cno.ReadOnly = false; CourseAdd.Text = "添加"; } else { MessageBox.Show("修改失败"); } } #endregion Cno.Text = ""; Cname.Text = ""; Credit.Text = ""; Category.Text = ""; Deptno.Text = ""; }