bbwyb/BBWYB.Client/Views/Order/OrderList.xaml.cs

using CommunityToolkit.Mvvm.Messaging;
using CommunityToolkit.Mvvm.Messaging.Messages;
using SJ.Controls.Extensions;
using System.Windows.Controls;

namespace BBWYB.Client.Views.Order
{
    /// <summary>
    /// OrderList.xaml 的交互逻辑
    /// </summary>
    public partial class OrderList : Page
    {
        private ScrollViewer scrollviewer_OrderList;
        public OrderList()
        {
            InitializeComponent();
            this.Loaded += OrderList_Loaded;
            WeakReferenceMessenger.Default.Register<Message_OrderListScrollToTop>(this, (o, x) =>
            {
                this.Dispatcher.Invoke(() =>
                {
                    scrollviewer_OrderList.Dispatcher?.Invoke(() => scrollviewer_OrderList.ScrollToTop());
                });
            });
        }

        private void OrderList_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
            scrollviewer_OrderList = listbox_order.FindFirstVisualChild<ScrollViewer>();
        }
    }

    public class Message_OrderListScrollToTop : ValueChangedMessage<object>
    {
        public Message_OrderListScrollToTop(object value) : base(value)
        {
        }
    }
}