同大家一样,在使用TreeView控件时,遇到了这个问题。上网也查了一些资料,但都不是太有效。经摸索问题解决了。过程说明如下:
TreeView控件的数据采取模板,采用MVVM模式,直接绑定给数据源。如下:
<TreeView Name="tvDepartment" Margin="5,4" Background="{StaticResource PanelContentBgReflact}"
BorderThickness="2" BorderBrush="{StaticResource Brush_HeaderBackground}"
ItemsSource="{Binding Path=TreeItemsSource}" TreeViewItem.Selected="tvDepartment_Selected">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate DataType="{x:Type local:TreeViewDataModel}" ItemsSource="{Binding Children}">
<StackPanel Orientation="Horizontal" >
<Image VerticalAlignment="Center" Source="{Binding Path=Icon}"></Image>
<TextBlock Text="{Binding Path=Name}" ToolTip="{Binding Path=ToolTip}" Tag="{Binding Children}" FontSize="14" Foreground="Black"></TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
后台Selected事件如下:
private void tvDepartment_Selected(object sender, RoutedEventArgs e)
{
TreeViewItem tvi = e.OriginalSource as TreeViewItem;
var model = tvi.Header as TreeViewDataModel; //树节点的数据模型
if (model != null)
DdbTree.Content = model.Name; //此句最为关键,获取选中节点的内容
}
如上,问题即搞定。