private void button1_Click(object sender, EventArgs e)
{
MarkAdd tForm = new MarkAdd();
List <Student> students = db.Students.ToList();
List <Subject> subjects = db.Subjects.ToList();
tForm.comboBox1.DataSource = subjects;
tForm.comboBox1.ValueMember = "Id";
tForm.comboBox1.DisplayMember = "Name";
tForm.comboBox2.DataSource = students;
tForm.comboBox2.ValueMember = "Id";
tForm.comboBox2.DisplayMember = "Surname";
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
Mark mark = new Mark();
mark.Smark = Convert.ToInt32(tForm.textBox1.Text);
mark.Subject = (Subject)tForm.comboBox1.SelectedItem;
mark.Student = (Student)tForm.comboBox2.SelectedItem;
db.Marks.Add(mark);
db.SaveChanges();
MessageBox.Show("Оценка добавлена");
update();
}
private void button1_Click(object sender, EventArgs e)
{
TeachAdd tForm = new TeachAdd();
List <Subject> subjects = db.Subjects.ToList();
tForm.comboBox1.DataSource = subjects;
tForm.comboBox1.ValueMember = "Id";
tForm.comboBox1.DisplayMember = "Name";
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
Teacher teacher = new Teacher();
teacher.Name = tForm.textBox1.Text;
teacher.Surname = tForm.textBox2.Text;
teacher.Salary = Convert.ToInt32(tForm.textBox3.Text);
teacher.Subject = (Subject)tForm.comboBox1.SelectedItem;
db.Teachers.Add(teacher);
db.SaveChanges();
MessageBox.Show("Учитель добавлен");
update();
}
public bool Create(Group newGroup)
{
foreach (var group in Database.Groups)
{
if (group.Name == newGroup.Name)
{
return(false);
}
}
Database.Groups.Add(newGroup);
Database.SaveChanges();
return(true);
}
private void button1_Click(object sender, EventArgs e)
{
SubjAdd tForm = new SubjAdd();
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
Subject subject = new Subject();
subject.Name = tForm.textBox1.Text;
db.Subjects.Add(subject);
db.SaveChanges();
MessageBox.Show("Предмет добавлен");
update();
}
private void button1_Click(object sender, EventArgs e)
{
StudAdd tForm = new StudAdd();
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
Student student = new Student();
student.Name = tForm.textBox1.Text;
student.Surname = tForm.textBox2.Text;
student.Course = Convert.ToInt32(tForm.textBox3.Text);
db.Students.Add(student);
db.SaveChanges();
MessageBox.Show("Студент добавлен");
update();
}
//上下文提交
public bool Commit()
{
return(_context.SaveChanges() > 0);
}
public int SaveChanges()
{
return(Db.SaveChanges());
}
public void Add(TEntity T)
{
_dbSet.Add(T);
_context.SaveChanges();
}
public int SaveChanges()
{
return(_dbContext.SaveChanges());
}
public int SaveChanges()
{
return(_studyContext.SaveChanges());
}
public void Save()
{
_context.SaveChanges();
}