我使用项目模板的黄色清单箱。 在模板中定义的每个项目清单中,都有一个吨。 当用户点击纽顿时,改变数据来源的价值,确定名单的顺序。 改变数据来源并不是一个问题,因为这在我的申请模板中只是细微的。
然而,我的下一步是使用新的排序数据源重新加载列表框。我尝试从模板中执行此操作,但显然没有访问权限(或者我无法弄清楚如何访问)父元素,因此无法使用新的排序数据源重置.ItemsSource属性。
象这样的种子是可能的,但解决办法是让我ud笑:
我使用项目模板的黄色清单箱。 在模板中定义的每个项目清单中,都有一个吨。 当用户点击纽顿时,改变数据来源的价值,确定名单的顺序。 改变数据来源并不是一个问题,因为这在我的申请模板中只是细微的。
然而,我的下一步是使用新的排序数据源重新加载列表框。我尝试从模板中执行此操作,但显然没有访问权限(或者我无法弄清楚如何访问)父元素,因此无法使用新的排序数据源重置.ItemsSource属性。
象这样的种子是可能的,但解决办法是让我ud笑:
您可以使用具有约束力的数据,将Button s Tag约束到ListBox
ancestor。 例:
<Grid>
<Grid.Resources>
<DataTemplate x:Key="myDataTemplate">
<Button Tag="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=ListBox}}"
Click="Button_Click">MyButton</Button>
</DataTemplate>
</Grid.Resources>
<ListBox ItemTemplate="{StaticResource myDataTemplate}" ItemsSource="..." />
</Grid>
这里的文字是:
private void Button_Click(object sender, RoutedEventArgs e)
{
ListBox myListBox = (ListBox)((Button)sender).Tag;
...do something with myListBox...
}
或者,你可以手工地将视觉树上攀升到你的代码上(第<条码>。
private void Button_Click(object sender, RoutedEventArgs e)
{
DependencyObject search = (DependencyObject)sender;
while (!(search is ListBox)) {
search = VisualTreeHelper.GetParent(search);
}
ListBox myListBox = (ListBox)search;
...do something with myListBox...
}
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