c# - 如何根据我单击的类别按钮在列表框中显示产品列表？

Question

我有一个带按钮的菜单，每个按钮都有一个类别。在菜单旁边，我放置了一个列表框。此列表框链接到数据库中的产品列表。我希望每当我按下类别按钮时，链接到该类别（带有 categoryID）的产品将显示在列表框中。

我使用以下代码在列表框中显示产品

var productslist = from products in db.products select products;
prodlb.ItemsSource = productslist;

Answer 1

private void Buttonproducts_OnClick(object sender, RoutedEventArgs e)
    {
        var productslist = from products in db.products select products;
        prodlb.ItemsSource = productslist;
    }

private void ButtonCustomers_OnClick(object sender, RoutedEventArgs e)
    {
        var Customerslist = from Customers in db.customers select customers;
        prodlb.ItemsSource = Customerslist;
    }