/// <summary>
/// 按学号删除学生
/// </summary>
/// <param name="value"></param>
public void Delete(string value)
{
SchoolrollMethod roll = new SchoolrollMethod();
using (var dbcontext = new srContext())
{
var student = dbcontext.Student.FirstOrDefault(u => u.Sno == value);
var schoolroll = dbcontext.Schoolroll.FirstOrDefault(u => u.Sno == value);
var cerlist = new List <Certificate>();
var cetlists = new List <Cet>();
var scorelist = new List <Score>();
foreach (var infor in dbcontext.Certificate)
{
if (infor.Sno == value)
{
cerlist.Add(infor);
}
}
foreach (var infor in dbcontext.Cet)
{
if (infor.Sno == value)
{
cetlists.Add(infor);
}
}
foreach (var infor in dbcontext.Score)
{
if (infor.Sno == value)
{
scorelist.Add(infor);
}
}
if (cerlist != null)
{
foreach (var infor in cerlist)
{
dbcontext.Certificate.Remove(infor);
}
}
if (cetlists != null)
{
foreach (var infor in cetlists)
{
dbcontext.Cet.Remove(infor);
}
}
if (scorelist != null)
{
foreach (var infor in scorelist)
{
dbcontext.Score.Remove(infor);
}
}
dbcontext.Schoolroll.Remove(schoolroll);
dbcontext.Student.Remove(student);
dbcontext.SaveChanges();
}
}
/// <summary>
/// 获取学籍信息
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public Schoolroll GetRoll(string value)
{
var schoolroll = new Schoolroll();
using (var dbcontext = new srContext())
{
schoolroll = dbcontext.Schoolroll.FirstOrDefault(u => u.Sno == value);
}
return(schoolroll);
}
/// <summary>
/// 获取一个学生信息
/// </summary>
/// <param name="no"></param>
/// <returns></returns>
public Student FindStudent(string no)
{
var student = new Student();
using (var dbcontext = new srContext())
{
student = dbcontext.Student.FirstOrDefault(u => u.Sno == no);
}
var schoolroll = new Schoolroll();
var function = new SchoolrollMethod();
schoolroll = function.GetRoll(no);
student.Schoolroll = schoolroll;
return(student);
}
/// <summary>
/// 修改学生信息
/// </summary>
/// <param name="student"></param>
public void Change(Student student)
{
using (var dbcontext = new srContext())
{
var stu = dbcontext.Student.FirstOrDefault(u => u.Sno == student.Sno);
var sch = dbcontext.Schoolroll.FirstOrDefault(u => u.Sno == student.Sno);
stu.Sphone = student.Sphone;
stu.Saddress = student.Saddress;
sch.Department = student.Schoolroll.Department;
sch.Major = student.Schoolroll.Major;
sch.Class = student.Schoolroll.Class;
sch.Type = student.Schoolroll.Type;
sch.Length = student.Schoolroll.Length;
dbcontext.SaveChanges();
}
}
public Administrator AdmLogin(Administrator administrator)
{
using (var dbcontext = new srContext())
{
var infor = dbcontext.Administrator.FirstOrDefault(u => u.Ano == administrator.Ano &&
u.Apassword == administrator.Apassword);
if (infor != null)
{
return(infor);
}
else
{
return(null);
}
}
}
public Teacher TeaLogin(Teacher teacher)
{
using (var dbcontext = new srContext())
{
var infor = dbcontext.Teacher.FirstOrDefault(u => u.Tno == teacher.Tno &&
u.Tpassword == teacher.Tpassword);
if (infor != null)
{
return(infor);
}
else
{
return(null);
}
}
}
/// <summary>
/// 登录
/// </summary>
/// <param name="student"></param>
/// <returns></returns>
public Student StuLogin(Student student)
{
using (var dbcontext = new srContext())
{
var infor = dbcontext.Student.FirstOrDefault(u => u.Sno == student.Sno &&
u.Spassword == student.Spassword);
if (infor != null)
{
return(infor);
}
else
{
return(null);
}
}
}
/// <summary>
/// 获取所有学生信息
/// </summary>
/// <returns></returns>
public List <Student> ReadDB()
{
List <Student> students = new List <Student>();
var schoolroll = new Schoolroll();
var function = new SchoolrollMethod();
using (var dbcontext = new srContext())
{
foreach (var value in dbcontext.Student)
{
schoolroll = function.GetRoll(value.Sno);
value.Schoolroll = schoolroll;
students.Add(value);
}
}
return(students);
}
/// <summary>
/// 增加一个学生
/// </summary>
/// <param name="student"></param>
/// <returns></returns>
public bool Addstudent(Student student)
{
var infor = student;
infor.Spassword = "******";
infor.Schoolroll.School = "西安建筑科技大学";
infor.Schoolroll.Sno = student.Sno;
var str = Check(student);
if (str == null)
{
using (var db = new srContext())
{
if (db.Student.FirstOrDefault(u => u.Sno == infor.Sno) != null)
{
return(false);
}
else
{
if (infor.Ssex == "男" || infor.Ssex == "女")
{
db.Student.Add(infor);
db.SaveChanges();
return(true);
}
else
{
return(false);
}
}
}
}
else
{
return(false);
}
}
