c# - 在 Windows C# 之间传递对象

Question

我的任务是必须使用 c# 的项目创建从文件中提取对象列表的表单，然后能够将列表传递给另一个窗口。

public class Food
{
    public string Name;
    public string Category;
    public int Price;
}

public class Ingredient
{
    public string Name;
    public string Category;
    public decimal PricePerUnit;
    public decimal Quantity;

    public Ingredient(string pName, string pCategory, decimal pPricePerUnit, decimal pQuantity)
    {
        Name = pName;
        Category = pCategory;
        PricePerUnit = pPricePerUnit;
        Quantity = pQuantity;
    }
}

/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        List<Ingredient> Inventory = CallInventoryFile();
    }



    private void inventoryButton_Click(object sender, RoutedEventArgs e)
    {
        InventoryWindow wnd = new InventoryWindow();
        wnd.ShowDialog();
    }

    public List<Ingredient> CallInventoryFile()
    {

        List<Ingredient> ProcessedInventory = new List<Ingredient>();

        try
        {
            string[] fileLines = File.ReadAllLines("Inventory.txt");


            //Reading in the file
            for (int i = 0; i < fileLines.Length; i++)
            {
                string[] CurrentLine = fileLines[i].Split(',');
                string Name = CurrentLine[0].Trim();
                string Category = CurrentLine[1].Trim();
                decimal PricePerUnit = decimal.Parse(CurrentLine[2].Trim());
                decimal Quantity = decimal.Parse(CurrentLine[3].Trim());
                Ingredient IngredientToAdd = new Ingredient(Name, Category, PricePerUnit, Quantity);
                ProcessedInventory.Add(IngredientToAdd);
            }
            return ProcessedInventory;
        }
        catch
        {
            //if we get here read in failed
            MessageBox.Show("There was an error reading in the file");
            return ProcessedInventory;
        }
    }

然后我必须移动到这个窗口

    public InventoryWindow()
    {
        InitializeComponent();

        categoryComboBox.Items.Add("All");
        categoryComboBox.Items.Add("Pizza");
        categoryComboBox.Items.Add("Burger");
        categoryComboBox.Items.Add("Sundry");
        categoryComboBox.SelectedValue = "All";
    }

    private void listBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

    }

    private void categoryComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

    }
}

我的问题是如何将 Inventory 的结果从 MainWindow 传递到 InventoryWindow。

Answer 1

你可以直接传入构造函数，

  InventoryWindow wnd = new InventoryWindow(Inventory);
  wnd.ShowDialog();

然后，

public InventoryWindow(List<Ingredient> inputList)
{
}