我正在尝试使用棱镜7.1AutoWirePartialView
绑定一个PartialView
到它的 viewModel。但是,绑定不起作用,或者至少将 viewModel 设置为PartialView
似乎不起作用,它仍然具有页面的 BindingContext 作为 BindingContext。
有我的页面 :
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="Project.Core.Views.NotConnectedViews.ForecastDemoPage"
xmlns:carouselForecast="clr-namespace:Project.Core.Views.MainViews"
xmlns:prism="clr-namespace:Prism.Mvvm;assembly=Prism.Forms"
x:Name="ForecastDemo"
BackgroundColor="{StaticResource PrimaryColorOne}" ControlTemplate="{StaticResource MainAppTemplate}">
<ContentPage.ToolbarItems>
<ToolbarItem Name="SearchForecast" Command="{Binding ShowSearchForecastDemoCommand}" Order="Primary" Icon="ic_search_white_24dp.png" Priority="0" />
</ContentPage.ToolbarItems>
<ContentView x:Name="ContentViewForecast" ControlTemplate="{StaticResource ForecastTownControlTemplate}">
<carouselForecast:ForecastPartialViewCarousel prism:ViewModelLocator.AutowirePartialView="{x:Reference ForecastDemo}"></carouselForecast:ForecastPartialViewCarousel>
</ContentView>
</ContentPage>
绑定:找不到“DayWeatherForecasts”属性
'Project.Core.ViewModels.ForecastDemoPageViewModel',目标属性:
'Project.Core.Views.MainViews.ForecastPartialViewCarousel.ItemsSource'
正如你所看到的,我使用部分视图作为ContentPresenter
for a ContentView
使用一个ControlTemplate
.
这是我的 PartialView :
<carousel:CarouselViewControl x:Name="carouselView"
Position="{Binding CarouselPosition}"
PositionSelectedCommand="{Binding PositionChanged}"
Orientation="Horizontal" AnimateTransition="True" IsSwipeEnabled="False"
ItemsSource="{Binding DayWeatherForecasts}" InterPageSpacing="10"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:carousel="clr-namespace:CarouselView.FormsPlugin.Abstractions;assembly=CarouselView.FormsPlugin.Abstractions"
x:Class="Project.Core.Views.MainViews.ForecastPartialViewCarousel">
<!-- Item template is defined here, removed for readability -->
</carousel:CarouselViewControl>
这是我的 PartialView ViewModel :
namespace Project.Core.ViewModels
{
public class ForecastPartialViewCarouselViewModel : ViewModelBase
{
public ForecastPartialViewCarouselViewModel(IForecastService forecastService,
INavigationService navigationService) : base(navigationService)
{
InitStubForecasts();
}
private ObservableCollection<DayWeatherForecast> _dayWeatherForecasts;
public ObservableCollection<DayWeatherForecast> DayWeatherForecasts
{
get => _dayWeatherForecasts;
set => SetProperty(ref _dayWeatherForecasts, value);
}
}
}
当然DayWeatherForecasts
设置了一些存根值。为了便于阅读,我简化了 viewModel。
我没有使用 prism AutoWiring viewModel,因此在 app.xaml.cs 中:
containerRegistry.RegisterForNavigation<ForecastDemoPage, ForecastDemoPageViewModel>();
问题: 难道我的PartialViewModel
位于 ViewModels 文件夹中,并且我想要绑定到此 ViewModel 的 Partialview 位于子文件夹下MainViews
?我应该创建一个MainViewsViewModel
文件夹并将我的 viewModel 放在那里?
编辑:我尝试了这个解决方案,但正如我所料,它什么也没做。
如果没有,那么我不知道为什么它不起作用......
谢谢 !