WPF 绑定ListView ItemContainerStyle 背景

Question

我有一个UserControl( FahrtControl.xaml) 和一个ListView. 这UserControl势必给ItemsControl我MainWindow.xaml。该MainWindow有自己的视图模型和FahrtControl拥有自己的视图模型。我现在想的背景结合Listview项目的Brush中的视图模型属性FahrtControl。以下是我的代码的相关部分：主窗口.xaml：<Window x:Class="WpfFrontend.Forms.Main.MainWindow"    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"    xmlns:local="clr-namespace:WpfFrontend.Forms.Main"    xmlns:fahrtControl="clr-namespace:WpfFrontend.Controls.FahrtControl"    mc:Ignorable="d"><Window.DataContext>    <local:MainViewModel /></Window.DataContext><Window.Resources>    <DataTemplate DataType="{x:Type fahrtControl:FahrtControlViewModel}">        <fahrtControl:FahrtControl />    </DataTemplate></Window.Resources><ItemsControl ItemsSource="{Binding Fahrten, UpdateSourceTrigger=PropertyChanged}" />主视图模型.cs：using System;using System.Collections.Generic;using System.Collections.ObjectModel;using System.ComponentModel;using System.Linq;using System.Runtime.CompilerServices;using System.Windows.Controls;using System.Windows.Media;using Backend;using DatabaseCommunication;using WpfFrontend.Annotations;using WpfFrontend.Controls.FahrtControl;namespace WpfFrontend.Forms.Main{    public class MainViewModel : INotifyPropertyChanged    {        public MainViewModel ()        {            SyncFahrten ();        }        private void SyncFahrten ()        {            var fahrtenPromise =                MainUtility.GetFahrtenToRangeAsync (GlobalProperties.Start, GlobalProperties.Start.AddDays (6));            fahrtenPromise.Task.GetAwaiter ().OnCompleted (() =>            {                AddFahrten (fahrtenPromise.Task.Result);            });        }