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);
});
}
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