wpf - 绑定(bind) ="{Binding (0)}"是什么意思？

Question

我找到了这个:

<DataTrigger Value="True" Binding="{Binding (0)}">

触发 RibbonMenuButton模板。这是什么意思？我试过谷歌，但一无所获。

UPD 更多代码:

<ControlTemplate x:Key="RibbonMenuButtonControlTemplate1" TargetType="{x:Type RibbonMenuButton}">
...
    <DataTrigger Binding="{Binding (0)}" Value="True">
        <Setter Property="TextElement.Foreground" TargetName="MainGrid" Value="{DynamicResource {x:Static SystemColors.MenuTextBrushKey}}"/>
        <Setter Property="PathFill" TargetName="TwoLineText" Value="{DynamicResource {x:Static SystemColors.MenuTextBrushKey}}"/>
        <Setter Property="CornerRadius" TargetName="OuterBorder" Value="0"/>
        <Setter Property="Background" TargetName="OuterBorder" Value="Transparent"/>
        <Setter Property="BorderBrush" TargetName="OuterBorder" Value="Transparent"/>
    </DataTrigger>
...

此代码在按下 RibbonMenuButton 上的“编辑模板”按钮后在 Blend 中创建控制。

Answer 1

它看起来像一个错误。据我所知，在WPF中不能Binding这种类型的。下面列出不足之处，请注意第一段，引自 connect.microsoft.com (archive):

I'm trying to style the ribbon control (System.Windows.Controls.Ribbon) and I keep running into problems.

• If I use Blend or another tool to copy the default template of the Ribbon, the RibbonGroup, the RibbonTab, etc. these templates have errors. There are Bindings like {Binding (0)}.

• I cannot change the height of the ribbon control.

• It's not possible to change the template of the RibbonGroup, to change the appearance of the separator and to place the header in the top left corner of the group.

• It's not possible to add a label to the ApplicationMenuButton. Furthermore this button has a fixed width.

• I can't manage to remove the borders at the bottom of the ribbon control.

据我了解，没有修补程序。