基于选定的TreeViewItem切换视图

object TreeViewSelectedItem
{
    get{ return _treeViewSelectedItem;}
    set {_treeViewSelectedItem = value; NotifyPropertyChanged(\"TreeViewSelectedItem\");}
}

<TreeView ... SelectedItem={Binding TreeViewSelectedItem Mode=OneWayToSource}\".../>

<UserControl>
    <Control.Resources>
        <DataTemplate DataType=\"{x:Type Plane}\">
        ....
        </DataTemplate> 
        <DataTemplate DataType=\"{x:Type Train}\">
        ....
        </DataTemplate>
        <DataTemplate DataType=\"{x:Type Automobile}\">
        ....
        </DataTemplate>
    </Control.Resources>

    <ContentControl Content={Binding TreeViewSelectedItem}\"/>
</Usercontrol>