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();
}
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;
}
Student student = db.Students.Find(id);
StudAdd tForm = new StudAdd();
tForm.textBox1.Text = student.Name;
tForm.textBox2.Text = student.Surname;
tForm.textBox3.Text = student.Course.ToString();
DialogResult result = tForm.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
student.Name = tForm.textBox1.Text;
student.Surname = tForm.textBox2.Text;
student.Course = Convert.ToInt32(tForm.textBox3.Text);
db.Entry(student).State = EntityState.Modified;
db.SaveChanges();
MessageBox.Show("Студент обновлен");
update();
}
}
