If I create multiple ListViews with the same ItemsSource they become strangely linked. In the following example, the two ListViews display a common list of strings. The assertions show that the two ItemCollections and SortDescriptionCollections are distinct, but if I attempt to sort the ListViews differently, the second sort order is applied to both.
如果我用相同的项目源创建多个列表视图，它们会奇怪地链接在一起。在下面的示例中，两个listview显示一个公共的字符串列表。断言表明这两个ItemCollections和SortDescriptionCollections是不同的，但是如果我尝试对listview进行不同的排序，则对这两个listview应用了第二个排序顺序。
The two ItemCollections must be related in order for the Selector.IsSynchronizedWithCurrentItem property to have any effect, but I would like to be able to break this association so that I can do things like I've tried in this example. Does anyone know how these collections are related, and how I can sever this relationship?
为了选择器，这两个项集合必须是相关的。issynchronizedem属性具有任何效果，但是我希望能够打破这种关联，这样我就可以像在这个示例中那样做一些事情。有人知道这些收藏是如何关联的吗?我怎样才能断绝这种关系?
XAML:
XAML:
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:llv="clr-namespace:LinkedListViews"
x:Class="LinkedListViews.Window1"
x:Name="Window"
Title="Window1"
Width="640" Height="480">
<Grid x:Name="LayoutRoot">
<ListView
x:Name="ListView1"
ItemsSource="{Binding ElementName=Window, Path=Data}"
Margin="75,8,0,8" Width="237" HorizontalAlignment="Left"/>
<ListView
x:Name="ListView2"
ItemsSource="{Binding ElementName=Window, Path=Data}"
HorizontalAlignment="Right" Margin="0,8,73,8" Width="243"/>
</Grid>
</Window>
Code behind:
背后的代码:
using System;
using System.IO;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.ComponentModel;
using System.Collections.Generic;
namespace LinkedListViews
{
public partial class Window1
{
private List<string> _Data = new List<string>
{
"Alpha", "Beta", "Gamma"
};
public List<string> Data
{
get { return _Data; }
}
public Window1()
{
this.InitializeComponent();
// Insert code required on object creation below this point.
System.Diagnostics.Debug.Assert(ListView1.Items != ListView2.Items);
System.Diagnostics.Debug.Assert(ListView1.Items.SortDescriptions != ListView2.Items.SortDescriptions);
this.ListView1.Items.SortDescriptions.Add(new SortDescription(null, ListSortDirection.Ascending));
this.ListView2.Items.SortDescriptions.Clear();
this.ListView2.Items.SortDescriptions.Add(new SortDescription(null, ListSortDirection.Descending));
}
}
}