我有一个带有两个ContentViews的ContentPage,并且我想将它们各自的绑定上下文设置为各自的各自的ViewModel(这是我首选的合并形式,而不是一个庞大的ViewModel)
主页
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="MVVMFramework.VVMs.Main.MainPage"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:MVVMFramework"
xmlns:nav="clr-namespace:MVVMFramework.Navigation.NavigationHeader"
xmlns:vm="clr-namespace:MVVMFramework.VVMs.Main">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="20" />
<RowDefinition Height="200" />
</Grid.RowDefinitions>
//ContentView For Header
<ContentView Grid.Row="0"
HorizontalOptions="Start"
VerticalOptions="Start">
Content="{Binding NavHeader}"
<!--<ContentView.BindingContext>
<nav:NavigationHeaderViewModel />
</ContentView.BindingContext>-->
</ContentView>
//ContentView For Body of the app
<ContentView Grid.Row="1"
Content="{Binding DisplayedView}"
HorizontalOptions="Center"
VerticalOptions="Center">
<!--<ContentView.BindingContext>
<vm:MainPageViewModel />
</ContentView.BindingContext>-->
</ContentView>
</Grid>
</ContentPage>
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当我取消注释这两个bindingcontext属性时,应用程序会编译,并开始运行,然后在加载MainPage时崩溃。
我执行不正确吗?还有另一种方法吗?