Question

我正在使用自定义模板绑定TreeView。我在模板中有一个按钮，当用户点击它时，我需要找出用于绑定特定模板实例的数据项。

因此，如果我将TreeView绑定到IList，我需要获取为特定模板实例提供数据的MyTreeItem。

我的代码如下所示：

<TreeView Grid.Column="1" HorizontalAlignment="Left" Height="268" Margin="10,41,0,0" VerticalAlignment="Top" Width="197" x:Name="TrViewCodeTree">
        <TreeView.ItemTemplate>
            <HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="roslynDemos:TrViewCodeTreeItem">
                <WrapPanel>
                    <Label Content="Node Type:" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="26" Width="70"/>
                    <TextBlock Text="{Binding NodeType}" Margin="10,10,0,0"></TextBlock>
                    <Label Content="Node Position" Margin="10,10,0,0" VerticalAlignment="Top" Height="26" Width="80"/>
                    <TextBlock Text="{Binding Position}" Margin="10,10,0,0"></TextBlock>
                    <Label Content="Node Length" Margin="10,10,0,0" VerticalAlignment="Top" Height="26" Width="75"/>
                    <TextBlock Text="{Binding Length}" Margin="10,10,0,0"></TextBlock>
                    <Button x:Name="BtnSelect" Click="BtnSelect_OnClick"></Button>
                </WrapPanel>
            </HierarchicalDataTemplate>
        </TreeView.ItemTemplate>

Answer 1

private void BtnSelect_OnClick(object sender, RoutedEventArgs e)
{
   var button = sender as Button;

   var dataitem = button.DataContext as [Your DataItem Class Here];

   dataitem.[DoStuffHere]();
}

Wpf TreeView获取用于绑定模板的数据项

1 个答案: