Question

我有一个Collection Class，它是一个放置List<Ingredient>对象的类，Ingredient对象列表的内容使用绑定显示在CheckListBox中。

我尝试做的是当用户点击其中一个列表项时，该特定项目中的信息被复制到另一个名为List<Pizza> myPizza的列表中，然后该列表将显示在列表中。我希望所有数据进入它的原因是因为一旦进入List<Pizza> myPizza，我会对数据做更多的事情。

我试过这样做，但似乎没有效果，下面是CollectionClass，窗体和成分类。我没有打扰披萨级，因为它与成分类相同我知道如何使用item将它添加到列表框中，但我真的想将它添加到List中，然后将List添加到ListBox。

我希望这是有道理的，有点新的编程。感谢。

成分类。

public partial class Form1 : Form
{
    //List<Ingredient> myIngredient = new List<Ingredient>();
    List<Pizza> myPizza = new List<Pizza>();
    CollectionClass myCollections = new CollectionClass();

    public Form1()
    {
        InitializeComponent();

        myCollections.createList();

        checkedListBoxIngredients.DataSource = new BindingSource(myCollections.myIngredient, null);
        checkedListBoxIngredients.DisplayMember = "DisplayName";
    }

    private void checkedListBoxIngredients_ItemCheck(object sender, ItemCheckEventArgs e)
    {
        foreach (Pizza pizza in myPizza)
        {
            checkedListBoxIngredients.Items.Add(pizza.ToppingName);
            checkedListBoxIngredients.Items.Add(pizza.UnitName);
            checkedListBoxIngredients.Items.Add(pizza.Cost);
            checkedListBoxIngredients.Items.Add(pizza.DescriptionName);
        }

        if (e.NewValue == CheckState.Checked)
        {
            yourPizza.DataSource = new BindingSource(myPizza, null);
            yourPizza.DisplayMember = "DisplayName";
        }
    }
}

成分类别。

public class Ingredient
{
     public string ToppingName { get; set; }
     public string UnitName { get; set; }
     public int Cost { get; set; }
     public string DescriptionName { get; set; }

     public Ingredient(string pizzaToppingName, string pizzaToppingUnit, int pizzaCost, string pizzaDescription)
     {
         ToppingName = pizzaToppingName;
         UnitName = pizzaToppingUnit;
         Cost = pizzaCost;
         DescriptionName = pizzaDescription;
     }

     public string DisplayName
     {
         get
         {
             return ToppingName + " $"+Cost;
         }
     }

     public override string ToString()
     {
         return ToppingName;
     }

  }

CollectionClass。

public class CollectionClass
{
    public List<Ingredient> myIngredient = new List<Ingredient>();

    public void createList()
    {
        myIngredient.Add(new Ingredient("Cheese", "grams", 3, "grab cheese and sprinkle on top of pizza"));
        myIngredient.Add(new Ingredient("Olives", "grams", 2, "cut up olives and sprickle on pizza"));
        myIngredient.Add(new Ingredient("Ham", "grams", 1, "spread cut up ham over pizza"));
        myIngredient.Add(new Ingredient("Pineapple", "grams", 1, "spread cut up chunks over pizza"));
        myIngredient.Add(new Ingredient("Pepperoni", "pieces", 1, "place slices on pepperoni on pizza"));
        myIngredient.Add(new Ingredient("Onion", "handfuls", 1, "sprinkle cut up onion on pizza, try not to cry"));
        myIngredient.Add(new Ingredient("Peppers", "grams", 1, "sprinkle cut up peppers on pizza"));
        myIngredient.Add(new Ingredient("Anchovy", "grams", 1, "place on top of pizza"));
        myIngredient.Add(new Ingredient("Mushrooms", "grams", 1, "put gently on top of pizza"));
    }

    public void displayList()
    {
        foreach (Ingredient ingred in myIngredient)
            if (ingred != null)
            {
                Console.WriteLine("{0} {1} ${2}.00, {3}",
                    ingred.ToppingName, ingred.UnitName, ingred.Cost,
                    ingred.DescriptionName);
            }
    }
}

如何在C＃中动态添加到List <object>

0 个答案: