public static bool chooseCourse(string studentID, string courseID, out string error)
{
error = "";
if (students.Retrieve(studentID) == null)
{
error = "该学生不存在";
return(false);
}
else
{
if (termCourses.RetrieveTermCourse(courseID) == null)
{
error = "不存在该课程";
return(false);
}
else
{
if (termCourses.RetrieveTermCourse(courseID).JustifyStudent(studentID))
{
error = "该课程已选";
return(false);
}
else
{
Model.TermCourse termcourse = termCourses.RetrieveTermCourse(courseID);
termcourse.AddStudent(studentID);
((Model.Student)students.Retrieve(studentID)).AddCourse(new Model.ChoosedCourses(courseID));
error = "选课成功";
return(true);
}
}
}
}
public static bool DeleteCourse(string courseid, out string error)
{
error = "";
if (courses.RetrieveCourse(courseid) == null)
{
error = "没有该课程";
return(false);
}
else
{
Model.TermCourse[] course = termCourses.RetrieveAll();
for (int i = 0; i < course.Length; i++)
{
Model.TermCourse tc = course[i];
if (tc.CourseID == courseid)
{
error = "该课程无法删除";
return(false);
}
}
courses.RemoveCourse(courseid);
error = "删除课程记录成功";
return(true);
}
}
private static void QueryTermCourse()
{
string error;
Console.WriteLine();
Console.WriteLine("请选择操作(1--查询学期课程 2--查询所有学期课程");
char c = char.Parse(Console.ReadLine());
if (c == '1')
{
Console.Write("请输入该学期课程的ID:");
string id = Console.ReadLine();
Model.TermCourse termCourse = BLL.AdminBLL.RetrieveTermCourse(id, out error);
Console.WriteLine("学期课程信息：");
Console.WriteLine("学期课程ID\t 课程名\t 任课教师");
Console.WriteLine("-------------------------");
Console.WriteLine("{0}\t {1}\t {2}", termCourse.ID, (BLL.AdminBLL.RetrieveCourse(termCourse.CourseID, out error)).Name, BLL.AdminBLL.RetrieveTeacher(termCourse.TeacherID, out error).Name);
}
else if (c == '2')
{
Model.TermCourse[] termCourses = BLL.AdminBLL.RetrieveAllTermCourse();
Console.WriteLine("课程信息");
Console.WriteLine("学期课程ID\t 课程名\t 任课教师");
Console.WriteLine("---------------");
for (int i = 0; i < termCourses.Length; i++)
{
Console.WriteLine("{0}\t {1}\t {2}", termCourses[i].ID, (BLL.AdminBLL.RetrieveCourse(termCourses[i].CourseID, out error)).Name, (BLL.AdminBLL.RetrieveTeacher(termCourses[i].TeacherID, out error)).Name);
}
}
else
{
Console.WriteLine("无效的操作");
}
}
public static void MarkingAStudent(string termcourseid, string studentid, double grade)
{
if (students.Retrieve(studentid) == null)
{
return;
}
Model.TermCourse termcourse = termCourses.RetrieveTermCourse(termcourseid);
((Model.Student)students.Retrieve(studentid)).BeMarked(termcourseid, grade);
}
public static void Marking(string termcourseid, Model.HasStudents[] stu)
{
Model.TermCourse termcourse = termCourses.RetrieveTermCourse(termcourseid);
string[] studentID = termcourse.GetAllStudent();
for (int i = 0; i < studentID.Length; i++)
{
((Model.Student)students.Retrieve(studentID[i])).BeMarked(termcourseid, stu[i].Grade);
}
}
/// <summary>
/// 增加学期新课程
/// </summary>
/// <param name="newTermCourse"></param>
/// <returns></returns>
public bool AddNewTermCourse(Model.TermCourse newTermCourse)
{
for (int i = 0; i < termCourses.Count; i++)
{
if (newTermCourse.ID == ((Model.TermCourse)termCourses[i]).ID)
{
return(false);
}
}
termCourses.Add(newTermCourse);
return(true);
}
private static void DeleteTermCourse()
{
Console.WriteLine();
Console.WriteLine("删除学期课程");
Console.Write("请输入要删除的学期课程ID： ");
string id = Console.ReadLine();
string error;
Model.TermCourse termCourse = BLL.AdminBLL.RetrieveTermCourse(id, out error);
if (termCourse == null)
{
Console.WriteLine("错误：" + error);
}
else
{
Console.WriteLine("学期课程信息： {0}", termCourse.ID);
Console.Write("确认要删除该学期课程吗？(Y/N)");
char c = char.Parse(Console.ReadLine());
if (c == 'y' || c == 'Y')
{
bool result = BLL.AdminBLL.DeleteTermCourse(id, out error);
if (result)
{
Console.WriteLine("删除成功");
}
else
{
Console.WriteLine("错误：" + error);
}
}
else if (c == 'n' || c == 'N')
{
Console.WriteLine("操作被取消！");
}
else
{
Console.WriteLine("无效的操作");
}
}
Console.WriteLine();
}
public static bool DeleteStudent(string studentid, out string error)
{
error = "";
Model.Person student = students.Retrieve(studentid);
if (student == null)
{
error = "没有该学生";
return(false);
}
else
{
Model.TermCourse[] termcourse = termCourses.BeStudiedByCourses(studentid);
for (int i = 0; i < termcourse.Length; i++)
{
Model.TermCourse course = termcourse[i];
course.RemoveStudent(studentid);
}
students.Remove(studentid);
error = "删除学生记录成功";
return(true);
}
}
private static void Mark()
{
string error = "";
Console.Write("请输入要登记成绩的课程ID：");
string courseid = Console.ReadLine();
Model.TermCourse termcourse = BLL.AdminBLL.RetrieveTermCourse(courseid, out error);
Console.Write("请选择(1--登记某个学生的成绩 2--等级所有学生的成绩");
char c = char.Parse(Console.ReadLine());
if (c == '1')
{
Console.Write("请输入该学生的学号：");
string studentid = Console.ReadLine();
Console.Write("{0}的成绩：");
double grade = double.Parse(Console.ReadLine());
BLL.TeacherBLL.MarkingAStudent(courseid, studentid, grade);
Console.WriteLine("登记成功");
}
else if (c == '2')
{
List <Model.HasStudents> hasstudents = new List <Model.HasStudents>();
for (int i = 0; i < termcourse.GetAllStudent().Length; i++)
{
Console.Write("{0}的分数：", termcourse.GetAllStudent()[i]);
double grade = double.Parse(Console.ReadLine());
hasstudents.Add(new Model.HasStudents(termcourse.GetAllStudent()[i], grade));
}
BLL.TeacherBLL.Marking(courseid, hasstudents.ToArray());
Console.WriteLine("登记成功");
}
else
{
Console.WriteLine("无效操作");
}
}