ListViewItem的IsSelected绑定 - 工程为WPF，但不适合的WinRT [英] ListViewItem IsSelected Binding - Works for WPF, but not for WinRT

问题描述

我想一个ListViewItem的的IsSelected属性绑定到一个ViewModel的属性。它工作正常在WPF，但在Windows RT IsSelected属性永远不会得到设定。

I'm trying to bind the IsSelected property of a ListViewItem to a property in a ViewModel. It works fine in WPF, but in Windows RT the IsSelected property is never getting set.

public class Item : INotifyPropertyChanged
{
    private readonly string name;
    private bool isSelected;
    public event PropertyChangedEventHandler PropertyChanged;

    public bool IsSelected
    {
        get { return isSelected; }
        set { isSelected = value; RaisePropertyChanged("IsSelected"); }
    }

    public string Name { get { return name; } }

    public Item(string name)
    {
        this.name = name;
    }

    protected void RaisePropertyChanged(string propertyName)
    {
        var handler = PropertyChanged;
        if (handler != null)
            handler.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

public class ViewModel
{
    private readonly ObservableCollection<Item> items = new ObservableCollection<Item>(Enumerable.Range(0, 10).Select(p => new Item(p.ToString())));
    public ObservableCollection<Item> Items { get { return items; } }
}

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();
        DataContext = new ViewModel();
    }
}

XAML：

xaml:

<StackPanel Orientation="Horizontal">
    <ListView ItemsSource="{Binding Path=Items}" SelectionMode="Multiple">
        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <Setter Property="IsSelected" Value="{Binding Path=IsSelected, Mode=TwoWay}"/>
            </Style>
        </ListView.ItemContainerStyle>
    </ListView>
    <ListView.ItemTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Path=Name}"/>
         </DataTemplate>
     </ListView.ItemTemplate>
</StackPanel>

我能点击屏幕上的项目，但IsSelected属性不传播到视图模型。任何想法，为什么？

I'm able to click on the items on the screen, but the IsSelected property isn't propagating to the ViewModel. Any ideas why?

推荐答案

的WinRT不支持绑定setter方法​​都与Windows 8.0。兵寻求解决方法。

WinRT doesn't support bindings in setters at all as of Windows 8.0. Bing for workarounds.

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