WPF:如何在视图中创建ViewModel
本质上,我有一个标记问题。我已经想出了一些解决方案,但我忍不住觉得这应该更简单一些。我不想让您走上我复杂的道路,而是想与您分享最简单的实现,并询问您将如何解决它 MainPage.xamlWPF:如何在视图中创建ViewModel,wpf,xaml,mvvm,Wpf,Xaml,Mvvm,本质上,我有一个标记问题。我已经想出了一些解决方案,但我忍不住觉得这应该更简单一些。我不想让您走上我复杂的道路,而是想与您分享最简单的实现,并询问您将如何解决它 MainPage.xaml <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="6" /> <Co
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<!--Additional Columns-->
</Grid.ColumnDefinitions>
<!--Row Definitions-->
<Label Grid.Row="0" Grid.Column="0" Content="Vin:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2" Command="{Binding CreateVehicleCommand}" CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Manufacturer:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding Vehicle.Manufacturer, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
<ctrl:VMFactoryUserControl x:Class="GenericProject.View.GenericView"
x:TypeArguments="vm:GenericViewModel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:ctrl="clr-namespace:SomeProject.Controls;assembly=SomeProject.Controls"
xmlns:vm="clr-namespace:GenericProject.ViewModel">
<Grid>
<!-- Column Definitions -->
<!-- Row Definitions -->
<Label Grid.Row="0" Grid.Column="0" Content="Generic Id:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2"
Command="{Binding VMFactory.CreateViewModelCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Generic Property:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding GenericProperty, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
</ctrl:VMFactoryUserControl>
<Page x:Class="GenericProject.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vw="clr-namespace:GenericProject.View">
<StackPanel>
<!-- Headers and Additional Content. -->
<vw:EventView DataContext="{Binding Generic}"
VMFactory="{Binding DataContext.GenericFactory, RelativeSource={RelativeSource AncestorType={x:Type Page}}}" />
</StackPanel>
</Page>
在上面的示例中,如果创建车辆的命令在要创建的DataContext(车辆)之外,那么如何将网格的内容放入视图中
如果你想看看我的具体尝试,这个问题就在这里
如何将网格的内容放入给定的视图中
用于创建车辆的命令位于外部的约束
要创建的数据上下文(车辆)
这感觉像是一个竞争条件,而不是MVVM问题。我会先讨论这个问题,然后再提出第二个建议
或者,您可以展平viewmodel以包含更多信息,并处理此IMHO竞争条件,这样就不会出现这种情况,控件以及网格可以以适当的格式访问信息
我不能完全解决这个问题,因为您更清楚现在必须解决的设计目标和危险。我想出了一些办法,我对此比较满意。这使我免于创建100个复合ViewModel,虽然它确实引入了一些不必要的复杂性,但它确实大大减少了我需要编写的复制/粘贴代码的数量 VMFactoryViewModel.cs
public class CreatedViewModelEventArgs<T> : EventArgs where T : ViewModelBase
{
public T ViewModel { get; private set; }
public CreatedViewModelEventArgs(T viewModel)
{
ViewModel = viewModel;
}
}
public class VMFactoryViewModel<T> : ViewModelBase where T : ViewModelBase
{
private Func<string, T> _createViewModel;
private RelayCommand<string> _createViewModelCommand;
private readonly IDialogService _dialogService;
/// <summary>
/// Returns a command that creates the view model.
/// </summary>
public ICommand CreateViewModelCommand
{
get
{
if (_createViewModelCommand == null)
_createViewModelCommand = new RelayCommand<string>(x => CreateViewModel(x));
return _createViewModelCommand;
}
}
public event EventHandler<CreatedViewModelEventArgs<T>> CreatedViewModel;
private void OnCreatedViewModel(T viewModel)
{
var handler = CreatedViewModel;
if (handler != null)
handler(this, new CreatedViewModelEventArgs<T>(viewModel));
}
public VMFactoryViewModel(IDialogService dialogService, Func<string, T> createViewModel)
{
_dialogService = dialogService;
_createViewModel = createViewModel;
}
private void CreateViewModel(string viewModelId)
{
try
{
OnCreatedViewModel(_createViewModel(viewModelId));
}
catch (Exception ex)
{
_dialogService.Show(ex.Message);
}
}
}
public class VMFactoryUserControl<T> : UserControl where T : ViewModelBase
{
public static readonly DependencyProperty VMFactoryProperty = DependencyProperty.Register("VMFactory", typeof(VMFactoryViewModel<T>), typeof(VMFactoryUserControl<T>));
public VMFactoryViewModel<T> VMFactory
{
get { return (VMFactoryViewModel<T>)GetValue(VMFactoryProperty); }
set { SetValue(VMFactoryProperty, value); }
}
}
public partial class GenericView : VMFactoryUserControl<GenericViewModel>
{
public GenericView()
{
InitializeComponent();
}
}
public class MainPageViewModel : ViewModelBase
{
private readonly IDialogService _dialogService;
private GenericViewModel _generic;
private readonly VMFactoryViewModel<GenericViewModel> _genericFactory;
public GenericViewModel Generic
{
get { return _generic; }
private set
{
if (_generic != value)
{
_generic = value;
base.OnPropertyChanged("Generic");
}
}
}
public VMFactoryViewModel<GenericViewModel> GenericFactory
{
get { return _genericFactory; }
}
private void OnGenericFactoryCreatedViewModel(object sender, CreatedViewModelEventArgs<GenericViewModel> e)
{
Generic = e.ViewModel;
}
public MainPageViewModel(IDialogService dialogService)
{
_dialogService = dialogService;
_genericFactory = new VMFactoryViewModel<GenericViewModel>(_dialogService, x => new GenericViewModel(_dialogService, GetGeneric(x)));
_genericFactory.CreatedViewModel += OnGenericFactoryCreatedViewModel;
}
private Generic GetGeneric(string genericId)
{
// Return some Generic model.
}
}
public类CreatedViewModelEventArgs:EventArgs其中T:ViewModelBase
{
public T ViewModel{get;private set;}
公共CreatedViewModelEventArgs(T视图模型)
{
ViewModel=ViewModel;
}
}
公共类VMFactoryViewModel:ViewModelBase,其中T:ViewModelBase
{
private Funcu createViewModel;
私有RelayCommand_createviewmodel命令;
专用只读IDialogService(对话服务);
///
///返回创建视图模型的命令。
///
公共ICommand createViewModel命令
{
收到
{
如果(_createViewModelCommand==null)
_createViewModelCommand=new RelayCommand(x=>CreateViewModel(x));
返回createViewModelCommand;
}
}
公共事件事件处理程序CreatedViewModel;
私有void OnCreatedViewModel(T viewModel)
{
var handler=CreatedViewModel;
if(处理程序!=null)
处理程序(这是新的CreatedViewModelEventArgs(viewModel));
}
公共VMFactoryViewModel(IDialogService对话框服务,Func createViewModel)
{
_dialogService=dialogService;
_createViewModel=createViewModel;
}
私有void CreateViewModel(字符串viewModelId)
{
尝试
{
OnCreatedViewModel(_createViewModel(viewModelId));
}
捕获(例外情况除外)
{
_dialogService.Show(例如Message);
}
}
}
VMFactoryUserControl.cs
public class CreatedViewModelEventArgs<T> : EventArgs where T : ViewModelBase
{
public T ViewModel { get; private set; }
public CreatedViewModelEventArgs(T viewModel)
{
ViewModel = viewModel;
}
}
public class VMFactoryViewModel<T> : ViewModelBase where T : ViewModelBase
{
private Func<string, T> _createViewModel;
private RelayCommand<string> _createViewModelCommand;
private readonly IDialogService _dialogService;
/// <summary>
/// Returns a command that creates the view model.
/// </summary>
public ICommand CreateViewModelCommand
{
get
{
if (_createViewModelCommand == null)
_createViewModelCommand = new RelayCommand<string>(x => CreateViewModel(x));
return _createViewModelCommand;
}
}
public event EventHandler<CreatedViewModelEventArgs<T>> CreatedViewModel;
private void OnCreatedViewModel(T viewModel)
{
var handler = CreatedViewModel;
if (handler != null)
handler(this, new CreatedViewModelEventArgs<T>(viewModel));
}
public VMFactoryViewModel(IDialogService dialogService, Func<string, T> createViewModel)
{
_dialogService = dialogService;
_createViewModel = createViewModel;
}
private void CreateViewModel(string viewModelId)
{
try
{
OnCreatedViewModel(_createViewModel(viewModelId));
}
catch (Exception ex)
{
_dialogService.Show(ex.Message);
}
}
}
public class VMFactoryUserControl<T> : UserControl where T : ViewModelBase
{
public static readonly DependencyProperty VMFactoryProperty = DependencyProperty.Register("VMFactory", typeof(VMFactoryViewModel<T>), typeof(VMFactoryUserControl<T>));
public VMFactoryViewModel<T> VMFactory
{
get { return (VMFactoryViewModel<T>)GetValue(VMFactoryProperty); }
set { SetValue(VMFactoryProperty, value); }
}
}
public partial class GenericView : VMFactoryUserControl<GenericViewModel>
{
public GenericView()
{
InitializeComponent();
}
}
public class MainPageViewModel : ViewModelBase
{
private readonly IDialogService _dialogService;
private GenericViewModel _generic;
private readonly VMFactoryViewModel<GenericViewModel> _genericFactory;
public GenericViewModel Generic
{
get { return _generic; }
private set
{
if (_generic != value)
{
_generic = value;
base.OnPropertyChanged("Generic");
}
}
}
public VMFactoryViewModel<GenericViewModel> GenericFactory
{
get { return _genericFactory; }
}
private void OnGenericFactoryCreatedViewModel(object sender, CreatedViewModelEventArgs<GenericViewModel> e)
{
Generic = e.ViewModel;
}
public MainPageViewModel(IDialogService dialogService)
{
_dialogService = dialogService;
_genericFactory = new VMFactoryViewModel<GenericViewModel>(_dialogService, x => new GenericViewModel(_dialogService, GetGeneric(x)));
_genericFactory.CreatedViewModel += OnGenericFactoryCreatedViewModel;
}
private Generic GetGeneric(string genericId)
{
// Return some Generic model.
}
}
公共类VMFactoryUserControl:UserControl其中T:ViewModelBase
{
公共静态只读DependencyProperty VMFactoryProperty=DependencyProperty.Register(“VMFactory”,typeof(VMFactoryViewModel),typeof(VMFactoryUserControl));
公共VMFactoryViewModel VMFactory
{
获取{return(VMFactoryViewModel)GetValue(VMFactoryProperty);}
set{SetValue(VMFactoryProperty,value);}
}
}
GenericView.xaml
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<!--Additional Columns-->
</Grid.ColumnDefinitions>
<!--Row Definitions-->
<Label Grid.Row="0" Grid.Column="0" Content="Vin:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2" Command="{Binding CreateVehicleCommand}" CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Manufacturer:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding Vehicle.Manufacturer, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
<ctrl:VMFactoryUserControl x:Class="GenericProject.View.GenericView"
x:TypeArguments="vm:GenericViewModel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:ctrl="clr-namespace:SomeProject.Controls;assembly=SomeProject.Controls"
xmlns:vm="clr-namespace:GenericProject.ViewModel">
<Grid>
<!-- Column Definitions -->
<!-- Row Definitions -->
<Label Grid.Row="0" Grid.Column="0" Content="Generic Id:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2"
Command="{Binding VMFactory.CreateViewModelCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Generic Property:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding GenericProperty, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
</ctrl:VMFactoryUserControl>
<Page x:Class="GenericProject.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vw="clr-namespace:GenericProject.View">
<StackPanel>
<!-- Headers and Additional Content. -->
<vw:EventView DataContext="{Binding Generic}"
VMFactory="{Binding DataContext.GenericFactory, RelativeSource={RelativeSource AncestorType={x:Type Page}}}" />
</StackPanel>
</Page>
GenericView.xaml.cs
public class CreatedViewModelEventArgs<T> : EventArgs where T : ViewModelBase
{
public T ViewModel { get; private set; }
public CreatedViewModelEventArgs(T viewModel)
{
ViewModel = viewModel;
}
}
public class VMFactoryViewModel<T> : ViewModelBase where T : ViewModelBase
{
private Func<string, T> _createViewModel;
private RelayCommand<string> _createViewModelCommand;
private readonly IDialogService _dialogService;
/// <summary>
/// Returns a command that creates the view model.
/// </summary>
public ICommand CreateViewModelCommand
{
get
{
if (_createViewModelCommand == null)
_createViewModelCommand = new RelayCommand<string>(x => CreateViewModel(x));
return _createViewModelCommand;
}
}
public event EventHandler<CreatedViewModelEventArgs<T>> CreatedViewModel;
private void OnCreatedViewModel(T viewModel)
{
var handler = CreatedViewModel;
if (handler != null)
handler(this, new CreatedViewModelEventArgs<T>(viewModel));
}
public VMFactoryViewModel(IDialogService dialogService, Func<string, T> createViewModel)
{
_dialogService = dialogService;
_createViewModel = createViewModel;
}
private void CreateViewModel(string viewModelId)
{
try
{
OnCreatedViewModel(_createViewModel(viewModelId));
}
catch (Exception ex)
{
_dialogService.Show(ex.Message);
}
}
}
public class VMFactoryUserControl<T> : UserControl where T : ViewModelBase
{
public static readonly DependencyProperty VMFactoryProperty = DependencyProperty.Register("VMFactory", typeof(VMFactoryViewModel<T>), typeof(VMFactoryUserControl<T>));
public VMFactoryViewModel<T> VMFactory
{
get { return (VMFactoryViewModel<T>)GetValue(VMFactoryProperty); }
set { SetValue(VMFactoryProperty, value); }
}
}
public partial class GenericView : VMFactoryUserControl<GenericViewModel>
{
public GenericView()
{
InitializeComponent();
}
}
public class MainPageViewModel : ViewModelBase
{
private readonly IDialogService _dialogService;
private GenericViewModel _generic;
private readonly VMFactoryViewModel<GenericViewModel> _genericFactory;
public GenericViewModel Generic
{
get { return _generic; }
private set
{
if (_generic != value)
{
_generic = value;
base.OnPropertyChanged("Generic");
}
}
}
public VMFactoryViewModel<GenericViewModel> GenericFactory
{
get { return _genericFactory; }
}
private void OnGenericFactoryCreatedViewModel(object sender, CreatedViewModelEventArgs<GenericViewModel> e)
{
Generic = e.ViewModel;
}
public MainPageViewModel(IDialogService dialogService)
{
_dialogService = dialogService;
_genericFactory = new VMFactoryViewModel<GenericViewModel>(_dialogService, x => new GenericViewModel(_dialogService, GetGeneric(x)));
_genericFactory.CreatedViewModel += OnGenericFactoryCreatedViewModel;
}
private Generic GetGeneric(string genericId)
{
// Return some Generic model.
}
}
公共部分类GenericView:VMFactoryUserControl
{
公共通用视图()
{
初始化组件();
}
}
MainPageViewModel.cs
public class CreatedViewModelEventArgs<T> : EventArgs where T : ViewModelBase
{
public T ViewModel { get; private set; }
public CreatedViewModelEventArgs(T viewModel)
{
ViewModel = viewModel;
}
}
public class VMFactoryViewModel<T> : ViewModelBase where T : ViewModelBase
{
private Func<string, T> _createViewModel;
private RelayCommand<string> _createViewModelCommand;
private readonly IDialogService _dialogService;
/// <summary>
/// Returns a command that creates the view model.
/// </summary>
public ICommand CreateViewModelCommand
{
get
{
if (_createViewModelCommand == null)
_createViewModelCommand = new RelayCommand<string>(x => CreateViewModel(x));
return _createViewModelCommand;
}
}
public event EventHandler<CreatedViewModelEventArgs<T>> CreatedViewModel;
private void OnCreatedViewModel(T viewModel)
{
var handler = CreatedViewModel;
if (handler != null)
handler(this, new CreatedViewModelEventArgs<T>(viewModel));
}
public VMFactoryViewModel(IDialogService dialogService, Func<string, T> createViewModel)
{
_dialogService = dialogService;
_createViewModel = createViewModel;
}
private void CreateViewModel(string viewModelId)
{
try
{
OnCreatedViewModel(_createViewModel(viewModelId));
}
catch (Exception ex)
{
_dialogService.Show(ex.Message);
}
}
}
public class VMFactoryUserControl<T> : UserControl where T : ViewModelBase
{
public static readonly DependencyProperty VMFactoryProperty = DependencyProperty.Register("VMFactory", typeof(VMFactoryViewModel<T>), typeof(VMFactoryUserControl<T>));
public VMFactoryViewModel<T> VMFactory
{
get { return (VMFactoryViewModel<T>)GetValue(VMFactoryProperty); }
set { SetValue(VMFactoryProperty, value); }
}
}
public partial class GenericView : VMFactoryUserControl<GenericViewModel>
{
public GenericView()
{
InitializeComponent();
}
}
public class MainPageViewModel : ViewModelBase
{
private readonly IDialogService _dialogService;
private GenericViewModel _generic;
private readonly VMFactoryViewModel<GenericViewModel> _genericFactory;
public GenericViewModel Generic
{
get { return _generic; }
private set
{
if (_generic != value)
{
_generic = value;
base.OnPropertyChanged("Generic");
}
}
}
public VMFactoryViewModel<GenericViewModel> GenericFactory
{
get { return _genericFactory; }
}
private void OnGenericFactoryCreatedViewModel(object sender, CreatedViewModelEventArgs<GenericViewModel> e)
{
Generic = e.ViewModel;
}
public MainPageViewModel(IDialogService dialogService)
{
_dialogService = dialogService;
_genericFactory = new VMFactoryViewModel<GenericViewModel>(_dialogService, x => new GenericViewModel(_dialogService, GetGeneric(x)));
_genericFactory.CreatedViewModel += OnGenericFactoryCreatedViewModel;
}
private Generic GetGeneric(string genericId)
{
// Return some Generic model.
}
}
public类MainPageViewModel:ViewModelBase
{
专用只读IDialogService(对话服务);
私有通用视图模型_generic;
私有只读VMFactoryViewModel\u genericFactory;
公共通用视图模型通用
{
获取{return\u generic;}
专用设备
{
如果(_generic!=值)
{
_通用=值;
基于财产变更(“通用”);
}
}
}
公共VMFactoryViewModel通用工厂
{
获取{return\u genericFactory;}
}
private void OnGenericFactoryCreatedViewModel(对象发送方,CreatedViewModelEventArgs e)
{
通用=e.ViewModel;
}
公共主页视图模型(IDialogService dialogService)
{
_dialogService=dialogService;
_genericFactory=new-VMFactoryViewModel(_-dialogService,x=>new-GenericViewModel(_-dialogService,GetGeneric(x));
_genericFactory.CreatedViewModel+=OnGenericFactoryCreatedViewModel;
}
私有泛型GetGeneric(字符串genericId)
{
//返回一些通用模型。
}
}
MainPage.xaml
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
<!--Additional Columns-->
</Grid.ColumnDefinitions>
<!--Row Definitions-->
<Label Grid.Row="0" Grid.Column="0" Content="Vin:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2" Command="{Binding CreateVehicleCommand}" CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Manufacturer:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding Vehicle.Manufacturer, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
<ctrl:VMFactoryUserControl x:Class="GenericProject.View.GenericView"
x:TypeArguments="vm:GenericViewModel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:ctrl="clr-namespace:SomeProject.Controls;assembly=SomeProject.Controls"
xmlns:vm="clr-namespace:GenericProject.ViewModel">
<Grid>
<!-- Column Definitions -->
<!-- Row Definitions -->
<Label Grid.Row="0" Grid.Column="0" Content="Generic Id:" HorizontalAlignment="Right" />
<ctrl:CommandTextBox Grid.Row="0" Grid.Column="2"
Command="{Binding VMFactory.CreateViewModelCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}}"
CommandParameter="{Binding Text, RelativeSource={RelativeSource Self}}" />
<Label Grid.Row="0" Grid.Column="3" Content="Generic Property:" HorizontalAlignment="Right" />
<TextBox Grid.Row="0" Grid.Column="5" IsEnabled="False" Text="{Binding GenericProperty, Mode=OneWay}" />
<!--Additional Read Only Values-->
</Grid>
</ctrl:VMFactoryUserControl>
<Page x:Class="GenericProject.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vw="clr-namespace:GenericProject.View">
<StackPanel>
<!-- Headers and Additional Content. -->
<vw:EventView DataContext="{Binding Generic}"
VMFactory="{Binding DataContext.GenericFactory, RelativeSource={RelativeSource AncestorType={x:Type Page}}}" />
</StackPanel>
</Page>
我看不出你在哪里挣扎。为什么不能将模型注入视图模型?为什么这会打破文本框?如果改变V