public static void RemoveCourse(Course course)
{
using (var context = new jwContext())
{
context.Courses.Remove(course);
context.SaveChanges();
Console.WriteLine("删除成功");
}
}
public static void RemoveCourse(string lessonNum, string stuID)
{
using (var context = new jwContext())
{
var course = AllCourses(context, stuID).Where(c => c.LessonNum == lessonNum).FirstOrDefault();
context.Courses.Remove(course);
context.SaveChanges();
Console.WriteLine("删除成功");
}
}
public static bool AddCourse(Course course, string stuID)
{
using (var context = new jwContext())
{
var temCourse = AllCourses(context, stuID).Where(c => c.LessonNum == course.LessonNum);
if (temCourse != null)
{
Console.WriteLine("课程已存在，添加失败。");
return(false);
}
context.Courses.Add(course);
context.SaveChanges();
return(true);
}
}
private void addButton_Click(object sender, EventArgs e)
{
Student student = bindingSource_StudentDB.Current as Student;
Course course = new Course();
CourseDetail courseDetailForm = new CourseDetail(student.StuID);
using (jwContext context = new jwContext())
{
if (courseDetailForm.ShowDialog() == DialogResult.OK)
{
course = courseDetailForm.course;
MessageBox.Show(course.ToString());
context.Courses.Add(course);
context.SaveChanges();
}
}
QueryAllCourses();
//bindingSource_StudentDB.DataSource = EasOP.GetAll(Convert.ToString(BotQQ.Id));
//dataGridView_StuList.DataSource = bindingSource_StudentDB;
}
