private void AddRecipeButton_Click(object sender, RoutedEventArgs e) { AddRecipe addRecipe = new AddRecipe(); addRecipe.AddRecipeIntoLst += new AddRecipe.MyDelegate(target => { MylstRecipes.Add(RecipeDAO.GetAllInfoByID(target)); }); addRecipe.Closed += new EventHandler((o, f) => { LoadElementsWithPageNumber(); }); addRecipe.Show(); }