private void DelLessonBut_Click(object sender, EventArgs e)
{
var c = dataGridView1.SelectedCells;
int indrow;
if (c.Count == 0)
{
return;
}
indrow = c[0].RowIndex;
var s = dataGridView1.Rows[indrow];
var dels = (int)s.Cells[0].Value;
BD.SchoolEntities entities = new BD.SchoolEntities();
BD.Lessons dt = entities.Lessons.Find(dels);
entities.Lessons.Remove(dt);
entities.SaveChanges();
MessageBox.Show("Lesson delited!");
}
private void AddTeachearsBut_Click(object sender, EventArgs e)
{
BD.SchoolEntities entities = new BD.SchoolEntities();
BD.Teachers teachers = new BD.Teachers();
teachers.NameT = NameBox.Text;
teachers.SurNameT = SurNameBox.Text;
entities.Teachers.Add(teachers);
entities.SaveChanges();
MessageBox.Show("Add Teacher!");
}
private void AddStudsBut_Click(object sender, EventArgs e)
{
BD.SchoolEntities entities = new BD.SchoolEntities();
BD.Studs studs = new BD.Studs();
studs.NameS = NameBox.Text;
studs.SurNameS = SurNameBox.Text;
var cl = comboBox1.SelectedItem as BD.Classes;
studs.IdCl = cl.IdCl;
entities.Studs.Add(studs);
entities.SaveChanges();
MessageBox.Show("Stud add!");
}