private void newIngred_add_Click(object sender, EventArgs e) { Pub_db.AddIngredient(new Ingredient(0, newIngred_name.Text.ToString(), Pub_db.GetProviderByName(newIngred_provider.Text.ToString()).Id, Pub_db.GetTypeIngredByName(newIngred_measure.Text.ToString()).Id)); newIngred_measure.Text = ""; newIngred_name.Text = ""; newIngred_provider.Text = ""; System.Windows.Forms.MessageBox.Show("Ingredient adding is successful", "Add Ingredient"); }