public void delete() { using (LCWContext lcw = new LCWContext()) { int deletechar = int.Parse(textBox4.Text); CharacteristicComp cg = lcw.CharacteristicsComps .Where(o => o.ID_CHAR == deletechar) .FirstOrDefault(); lcw.CharacteristicsComps.Remove(cg); lcw.SaveChanges(); } MessageBox.Show("Success", "Delete result"); }
public void addCharacteristicsComp() { using (LCWContext lcw = new LCWContext()) { CharacteristicComp CP; CP = new CharacteristicComp { ID_COMPONENT = Int32.Parse(textBox1.Text) }; CP.ID_CHARACTERISTIC = Int32.Parse(textBox2.Text); CP.CC_VALUE = textBox3.Text; lcw.CharacteristicsComps.Add(CP); lcw.SaveChanges(); } MessageBox.Show("Success", "Add result"); }