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();
}
private void button2_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0)
{
int index = dataGridView1.SelectedRows[0].Index;
int id = 0;
bool converted = Int32.TryParse(dataGridView1[0, index].Value.ToString(), out id);
if (converted == false)
{
return;
}
Teacher teacher = db.Teachers.Find(id);
TeachAdd tForm = new TeachAdd();
tForm.textBox1.Text = teacher.Name;
tForm.textBox2.Text = teacher.Surname;
tForm.textBox3.Text = teacher.Salary.ToString();
List <Subject> subjects = db.Subjects.ToList();
tForm.comboBox1.DataSource = subjects;
tForm.comboBox1.ValueMember = "Id";
tForm.comboBox1.DisplayMember = "Name";
if (teacher.Subject != null)
{
tForm.comboBox1.SelectedValue = teacher.Subject.Id;
}
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
teacher.Name = tForm.textBox1.Text;
teacher.Surname = tForm.textBox2.Text;
teacher.Salary = Convert.ToInt32(tForm.textBox3.Text);
teacher.Subject = (Subject)tForm.comboBox1.SelectedItem;
db.Entry(teacher).State = EntityState.Modified;
db.SaveChanges();
MessageBox.Show("Учитель " + tForm.textBox2.Text + " обновлен");
update();
}
}
