你好,我有一个WPF应用程序中的依赖注入问题。这里是我的代码: App.xaml.cs:WPF依赖注入
IUnityContainer container = new UnityContainer();
container.RegisterType<ICarViewModel, CarViewModel>();
container.RegisterType<MainWindow>();
MainWindow mainWindow = container.Resolve<MainWindow>();
mainWindow.Show();
CarViewModel.cs:
public ObservableCollection<Car> Cars{ get; } = new ObservableCollection<Car>()
{
new Car() {Name = "Audi"},
new Car() {Name = "Peugeot"},
new Car() {Name = "Renault"},
};
CarView.cs:
public partial class CarView : UserControl, ICarView
{
public CarView()
{
InitializeComponent();
}
public CarView(CarViewModel carViewModel) : this()
{
DataContext = carViewModel;
}
}
CarView.xaml:
<ItemsControl ItemsSource = "{Binding Path = Cars}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Orientation = "Horizontal">
<TextBlock Text = "{Binding Path = Name, Mode = OneWay}"/>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
MainWindow.xaml:
<view:CarView x:Name = "CarViewControl"></view:CarView>
Unity容器仍然只调用不带CarView参数的构造函数。 感谢您的建议
取出无参数构造函数?这可能只是默认使用那个。 – Clint
什么?请告诉我该怎么做? – bluray
您只需删除不带任何参数的构造函数,并保留那个。确保将调用移动到'InitializeComponent()'到构造函数,该构造函数接受参数并移除':this()'调用,你应该没问题。 – Clint