protected void btnEkle_Click(object sender, EventArgs e) { using (sfKalDataEntities ent = new sfKalDataEntities()) { Cihaz oCihaz = new Cihaz(); oCihaz.CIHAZADI = txtYeniCihazEkleCihazAdi.Text.Trim(); oCihaz.LAB = ddlYeniCihazEkleCihazLab.SelectedItem.Text; ent.AddToCihaz(oCihaz); ent.SaveChanges(); } }