private void AddSupplier(string id, string nama, string tlp, string eml, string alm, string kota, string kp, string lk) { db_Supplier kr = new db_Supplier() { ID_Supplier = id, Nama_Supplier = nama, No_Telepon_Supplier = tlp, Email_Supplier = eml, Alamat_Supplier = alm, Kota_Supplier = kota, Kodepos = int.Parse(kp), Lama_Kontrak = int.Parse(lk) }; db.AddTodb_Supplier(kr); db.SaveChanges(); }