protected void AddCourseSureButton_Click(object sender, EventArgs e)
{
tea = (Teacher)Session["teacher"];
Course newcourse = new Course();
if (cournumTextBox.Text == "")
CoursenumLabel.Visible = true;
else if (cournameTextBox.Text == "")
{
CoursenumLabel.Visible = false;
CoursenameLabel.Visible = true;
}
else
{
newcourse.teacher = tea.username;
newcourse.name = cournameTextBox.Text;
newcourse.num = cournumTextBox.Text;
DateTime start = Convert.ToDateTime(courstart_timeTextBox.Text + " 00:00:00");
newcourse.start_time = start;
DateTime end = Convert.ToDateTime(courend_timeTextBox.Text + " 23:59:59");
newcourse.end_time = end;
CourMan.AddCourse(newcourse);
Response.Write("<script>alert('成功添加!');location.href='AddCourse.aspx';</script>");
//Response.Redirect("AddCourse.aspx");
}
}
//添加课程
public bool AddCourse(Course course)
{
DataClassesDataContext da = new DataClassesDataContext();
da.Course.InsertOnSubmit(course);
da.SubmitChanges();
return true;
}
//删除课程
public bool DeleteCourse(Course course)
{
DataClassesDataContext da = new DataClassesDataContext();
var c=from s in da.Course
where s.teacher==course.teacher && s.name==course.name
select s;
var cin = from s in da.Student_Course
where s.course == c.First().num
select s;
var ca = from s in da.Assignment
where s.course == c.First().num
select s;
if (ca.Count() > 0)
{
foreach (var n in ca)
{
var p = from s in da.Problem
where s.assignment == n.id
select s;
if (p.Count() > 0)
{
var answer = from s in da.Answer
where s.problem == p.First().id
select s;
if (answer.Count() > 0)
{
da.Answer.DeleteAllOnSubmit(answer); //删除answer
}
}
var accessory = from s in da.Accessory
where s.assignment == n.id
select s;
if (accessory.Count() > 0)
da.Accessory.DeleteAllOnSubmit(accessory);
da.Problem.DeleteAllOnSubmit(p); //删除Problem
}
da.Assignment.DeleteAllOnSubmit(ca); //删除assignment
}
if (cin.Count() > 0)
{
da.Student_Course.DeleteAllOnSubmit(cin); //删除student_course
}
da.Course.DeleteAllOnSubmit(c); //删除Course
da.SubmitChanges();
return true;
}
protected void dcnameTextBox_TextChanged(object sender, EventArgs e)
{
tea = (Teacher)Session["teacher"];
Course deletecourse = new Course();
List<Course> courseforteacher = CourMan.GetCourseForTeacher(tea.username);
foreach (var c in courseforteacher)
{
if (c.name == dcnameTextBox.Text.ToString())
{
deletecourse = c;
break;
}
}
Session["deletecourse"] = deletecourse;
dcnumTextBox.Text = deletecourse.num;
dcstart_timeLabel.Text = deletecourse.start_time.ToString();
dcend_timeLabel.Text = deletecourse.end_time.ToString();
}
protected void Page_Load(object sender, EventArgs e)
{
if (Session["UserRole"] == null || Session["UserRole"].ToString() != "Teacher")
{
Response.Write("<Script language='javascript'>alert('您无权访问此页面，请重新登录！');window.history.go(-1);</Script>");
return;
}
//获取课程信息
tea = (Teacher)Session["teacher"];
courseforteacher = CourMan.GetCourseForTeacher(tea.username);
Session["courselist"] = courseforteacher;
foreach (var c in courseforteacher)
{
if (c.num == Request.QueryString["Coursenum"])
{
course = c;
break;
}
}
allassigncoursenameLabel.Text = course.name;
}
partial void DeleteCourse(Course instance);
partial void UpdateCourse(Course instance);
partial void InsertCourse(Course instance);
private void detach_Course(Course entity)
{
this.SendPropertyChanging();
entity.Teacher1 = null;
}
private void attach_Course(Course entity)
{
this.SendPropertyChanging();
entity.Teacher1 = this;
}
protected void Page_Load(object sender, EventArgs e)
{
if (Session["UserRole"] == null || Session["UserRole"].ToString() != "Teacher")
{
Response.Write("<Script language='javascript'>alert('您无权访问此页面，请重新登录！');window.history.go(-1);</Script>");
return;
}
//获取课程信息
tea = (Teacher)Session["teacher"];
List<Course> courseforteacher = CourMan.GetCourseForTeacher(tea.username);
foreach (var c in courseforteacher)
{
if (c.num == Request.QueryString["Coursenum"])
{
course = c;
break;
}
}
//显示课程名
coursenameLabel.Text = course.name;
//删除问题时弹窗
DeletePro.Attributes.Add("onclick", "return confirm('确定要删吗?');");
}
