private void bt_Save_Click(object sender, EventArgs e)
{
Modele md = new Modele();
md.idmodele = txtId.Text;
md.modele1 = txtmodele.Text;
gi.Modeles.Add(md);
gi.SaveChanges();
this.show();
}
public Model()
{
InitializeComponent();
this.m = new Modele();
}