private void Form5_Load(object sender, EventArgs e) { db = new centrEntities(); db.Configuration.ProxyCreationEnabled = false; db.Configuration.LazyLoadingEnabled = false; orderBindingSource.DataSource = db.order.ToList(); }
private void FillCombobox() { using (centrEntities c = new centrEntities()) { comboService.DataSource = c.service.ToList(); comboService.ValueMember = "serviceID"; comboService.DisplayMember = "name"; } }
private void comboService_SelectedIndexChanged(object sender, EventArgs e) { if (comboService.SelectedValue != null) { using (centrEntities c = new centrEntities()) { var price = (from serv in c.service where serv.serviceID == Convert.ToInt32(comboService.SelectedValue) select serv.price).SingleOrDefault(); TextPriceName.Text = price.ToString(); } } }