public void RemoveIngredientExecute()
 {
     try
     {
         if (Ingredient != null)
         {
             //invokes method to delete ingredient
             service.DeleteIngredient(Ingredient);
             //invokes method to update list of ingredients
             IngredientList      = service.AllIngredientForRecipe(Recipe.recipeId);
             Ingredient          = new tblIngredient();
             Ingredient.recipeId = Recipe.recipeId;
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.ToString());
     }
 }