从树视图获取的SelectedItem？ [英] Get SelectedItem from TreeView?

问题描述

有谁知道我如何从一个TreeView获得的SelectedItem（不是头）结果
这里是我的代码：

Does anyone know how I can get the SelectedItem (not the Header) from a TreeView?
Here is my code:

<TreeView Name="treeView1" DataContext="{Binding Path=PresentationsViewModel}" Grid.Column="1" >
    <TreeViewItem IsExpanded="True" Header="Objects-A-List" DisplayMemberPath="Name" ItemsSource="{Binding Path=MyItem.ListA}"></TreeViewItem>
    <TreeViewItem IsExpanded="True" Header="Objects-B-List" DisplayMemberPath="Name" ItemsSource="{Binding Path=MyItem.ListB}"></TreeViewItem>
    <TreeViewItem IsExpanded="True" Header="Objects-C-List" DisplayMemberPath="Name" ItemsSource="{Binding Path=MyItem.ListC}"></TreeViewItem>
</TreeView>

请注意，有3种不同的列表，包含3个不同的对象类型。
它会帮助我很多有类似：

Note that there are 3 different Lists, containing 3 different Object-Types. It'd help me a lot to have something like:

public Object SelectedObject
{
    set { _selectedObject = value; RunMyMethod(); RaisePropertyChanged("SelectedObject"); }
}  

谢谢！

Thanks in advance!

干杯

推荐答案

好吧，我知道这是一个老问题，可能已经死了，但查理有它的权利。这一点是，也可在代码中使用。例如，你可以这样做：

Ok I know this is an old question and probably dead but as Charlie has it right. This is something that can also be used in code. You could do for example:

<ContentPresenter Content="{Binding ElementName=treeView1, Path=SelectedItem}" />

至极就会显示所选项目。您可以将样式或DataTemplate中添加到或使用默认的DataTemplate你正在试图展示的对象。

Wich will show the selected item. You can add a style or DataTemplate to that or use a default DataTemplate to the object you are trying to show.

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