private void View_Save(object sender, EventArgs e)
{
using (QuizManagementDataContext dataContext = new QuizManagementDataContext())
{
switch (view.RoleID)
{
case 1: // teacher
Teacher teacher = dataContext.Teachers.FirstOrDefault(t => t.teacherID.Equals(view.ID));
teacher.name = view.RealName;
teacher.dateOfBirth = view.DateOfBirth;
dataContext.SubmitChanges();
break;
case 2: // student
Student student = dataContext.Students.FirstOrDefault(s => s.studentID.Equals(view.ID));
student.name = view.RealName;
student.dateOfBirth = view.DateOfBirth;
dataContext.SubmitChanges();
break;
}
}
}
private void View_CreateUser(object sender, EventArgs e)
{
CheckUserInfo();
if (isUserCreateable)
{
using (QuizManagementDataContext dataContext = new QuizManagementDataContext())
{
// encrypt password
EncryptPassword encryptPassword = new EncryptPassword();
view.AddedUser.password = encryptPassword.GetSaltedPassword(view.Password);
// insert user to database
dataContext.Users.InsertOnSubmit(view.AddedUser);
// create suitable object base on user'role
// insert to appropriate table
if (view.AddedUser.roleID == dataContext.RoleForSignups.SingleOrDefault(r => r.description.Equals("Student")).roleID)
{
StudentUser studentUser = new StudentUser();
studentUser.username = view.AddedUser.username;
studentUser.studentID = view.ID;
dataContext.StudentUsers.InsertOnSubmit(studentUser);
}
else
{
TeacherUser teacherUser = new TeacherUser();
teacherUser.username = view.AddedUser.username;
teacherUser.teacherID = view.ID;
dataContext.TeacherUsers.InsertOnSubmit(teacherUser);
}
dataContext.SubmitChanges();
} // end using
} // end outer if
} // end method View_CreateUser
private void View_ChangePassword(object sender, EventArgs e)
{
if (view.Password != view.ReEnterPassword)
{
view.IsSuccess = false;
view.ResponseMessage = "Passwords didn't match. Try again.";
}
else
{
using (QuizManagementDataContext dataContext = new QuizManagementDataContext())
{
User user = dataContext.Users.FirstOrDefault(u => u.username.Equals(view.Username));
EncryptPassword encryptPassword = new EncryptPassword();
user.password = encryptPassword.GetSaltedPassword(view.Password);
dataContext.SubmitChanges();
view.IsSuccess = true;
view.ResponseMessage = "Password changed successfully!";
}
}
} // end method View_ChangePassword
