我有一个WPF窗口与设置为其DataContext的视图模型,并与一个DataTemplate和其的ItemsSource列表框绑定到视图模型,如在下面的例子:在WPF中,如何从包含ListBox的DataTemplate中将数据绑定到Window DataContext?
查看模型:
using System.Collections.Generic;
namespace Example
{
class Member
{
public string Name { get; set; }
public int Age { get; set; }
}
class Team
{
private List<Member> members = new List<Member>();
public string TeamName { get; set; }
public List<Member> Members { get { return members; } }
}
}
MainWindow.xaml:
<Window x:Class="Example.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:l="clr-namespace:Example"
Title="Example" Height="300" Width="300" Name="Main">
<Window.DataContext>
<l:Team TeamName="The best team">
<l:Team.Members>
<l:Member Name="John Doe" Age="23"/>
<l:Member Name="Jane Smith" Age="20"/>
<l:Member Name="Max Steel" Age="24"/>
</l:Team.Members>
</l:Team>
</Window.DataContext>
<ListBox ItemsSource="{Binding Path=Members}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Path=TeamName}" Margin="4"/>
<TextBlock Text="{Binding Path=Name}" Margin="4"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Window>
当然,团队一流的TeamName属性不会因为LisBox的每一个项目是List.ItemTemplate的DataContext的显示在列表框中的项目,它将覆盖ŧ他窗口的DataContext。
问题是:如何从列表框的DataTemplate中绑定到视图模型(Window.DataContext)的TeamName属性?
+1。当然了!我没有想过将视图模型作为一个资源共享,我试图用RelativeSources和FindAncestor使事情复杂化,但没有成功。 – 2009-12-25 00:38:09
糟糕,如果我有足够的声望,我会为您投票 – 2009-12-25 00:40:17