private void RestaurantLocationUpdate_SelectedValueChanged(object sender, EventArgs e)
        {
            RESTAURANT r = ent.RESTAURANTs.Where(re => re.RESTAURANT_NAME == RestaurantsNamesUpdate.Text && re.RESTAURANT_LOCATION == RestaurantLocationUpdate.Text).First();

            RestaurantRatingUpdate.Value = r.RATING;
            CusineTypeUpdate.Text        = r.CUISINE_TYPE;
        }
        private void RestaurantsNamesUpdate_SelectedValueChanged(object sender, EventArgs e)
        {
            RESTAURANT r = ent.RESTAURANTs.Where(re => re.RESTAURANT_NAME == RestaurantsNamesUpdate.Text).First();

            RestaurantRatingUpdate.Text         = r.RATING.ToString();
            RestaurantLocationUpdate.DataSource = ent.RESTAURANTs.Where(re => re.RESTAURANT_NAME == RestaurantsNamesUpdate.Text).Select(ree => ree.RESTAURANT_LOCATION).ToList();
            CusineTypeUpdate.Text = r.CUISINE_TYPE;
        }
 private void updateRatingBtn_Click(object sender, EventArgs e)
 {
     if (CustomMsgBox.Show("Are you sure you want to update this restaurant?", 2) == DialogResult.Yes)
     {
         RESTAURANT r = ent.RESTAURANTs.Where(x => x.RESTAURANT_NAME == RestaurantsNamesUpdate.Text && x.RESTAURANT_LOCATION == RestaurantLocationUpdate.Text).First();
         r.RATING       = Convert.ToInt32(RestaurantRatingUpdate.Text);
         r.CUISINE_TYPE = CusineTypeUpdate.Text;
         ent.SaveChanges();
         CustomMsgBox.Show("Restaurant Updated");
         updateRest();
     }
 }
 private void addResBtn_Click(object sender, EventArgs e)
 {
     if (CustomMsgBox.Show("Are you sure you want to add this restaurant?", 2) == DialogResult.Yes)
     {
         if (ent.RESTAURANTs.Where(x => x.RESTAURANT_NAME == RestaurantsNamesAdd.Text && x.RESTAURANT_LOCATION == RestaurantLocationAdd.Text).Count() > 0)
         {
             CustomMsgBox.Show("This restaurant already exists");
             return;
         }
         RESTAURANT r = new RESTAURANT();
         r.RESTAURANT_NAME     = RestaurantsNamesAdd.Text;
         r.RESTAURANT_LOCATION = RestaurantLocationAdd.Text;
         r.RATING       = int.Parse(ratingRest.Text);
         r.CUISINE_TYPE = CusineTypeAdd.Text;
         ent.RESTAURANTs.Add(r);
         ent.SaveChanges();
         CustomMsgBox.Show("Restaurant added");
         updateRest();
     }
 }