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;
}
Subject subject = db.Subjects.Find(id);
SubjAdd tForm = new SubjAdd();
tForm.textBox1.Text = subject.Name;
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
subject.Name = tForm.textBox1.Text;
db.Entry(subject).State = EntityState.Modified;
db.SaveChanges();
MessageBox.Show("Предмет обновлен");
update();
}
}
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();
}