首先为TreeView控件制作一个Style:

<Style x:Key="LibraryTreeViewItemStyle" TargetType="{x:Type TreeViewItem}"

  <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />

  <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />

  <Setter Property="FontWeight" Value="Normal" />

  <Style.Triggers>

    <Trigger Property="IsSelected" Value="True">

      <Setter Property="FontWeight" Value="Bold" />

    </Trigger>

  </Style.Triggers>

</Style>

<TreeView ItemsSource="{Bind Path=YourCollection}" ItemContainerStyle="{StaticRecource LibraryTreeViewItemStyle}" ItemTemplate={StaticResource YourHierarchicalDataTemplate} />

最后,只要在绑定的数据类中提供相应的属性就可以,例如:

private bool m_bIsSelected = false;

public bool IsSelected

{

  get { return m_bIsSelected; }

  set

  {

    m_bIsSelected = value;

    OnPropertyChanged(new PropertyChangedEventArgs("IsSelected"));

  }

}

现在只要操作数据类的这个属性就可以控制树视图的选择项了。

05-06 03:50