Question

我们拥有一些XAML,这似乎很奇怪,但显然需要在第三方控制下确定一对 but子。彩票有一件物品。 XAML拥有两件阿雷拉物品的物品,这些阵列的物品是一种习俗,具有图形财产和不动产。一切都看重罚款,但我不能拿到与窗口数据环境有关的任何东西。我尝试了每一滴知识、亲爱、爱素福,但没有结果。 The following is the XAML:

<ribbon:RibbonGallery.ItemsSource>
    <x:Array Type="{x:Type customUITypes:ClickableImage}">
        <customUITypes:ClickableImage   x:Name="BitmapAddWorkflow" Command="{Binding ElementName=MainView, Path=DataContext.MyCommandOne}">
            <customUITypes:ClickableImage.Bitmap>
                <BitmapImage UriSource="/Images/GalleryWorkflowAdd.png"/>
            </customUITypes:ClickableImage.Bitmap>
        </customUITypes:ClickableImage>
        <customUITypes:ClickableImage  x:Name="BitmapDeleteWorkflow" Command="{Binding ElementName=MainView, Path=DataContext.MyCommandTwo}">
            <customUITypes:ClickableImage.Bitmap>
                <BitmapImage UriSource="/Images/GalleryWorkflowDelete.png"/>
            </customUITypes:ClickableImage.Bitmap>
        </customUITypes:ClickableImage>                                        
    </x:Array>
</ribbon:RibbonGallery.ItemsSource>
<ribbon:RibbonGallery.ItemTemplate>
    <DataTemplate>
        <Button Command="{Binding Command}">
           <Image Margin="2" Source="{Binding Bitmap}" Stretch="None"/>
        </Button>
    </DataTemplate>
</ribbon:RibbonGallery.ItemTemplate>

注:主要意见是窗口的名称,数据背景是我所希望的100%,我与任何其他约束意见没有任何问题,就在本阵列定义范围内。

我猜测,在物体的等级方面,我会陷入泥.之中,而我却认为,无论在阵列定义标记中,我是否具有约束力的,我还是应该能够找到一个要素,并对数据环境具有约束力。有时,XAML似乎缺乏一致性,造成头等平时,只是简单一些。我相信,在我的《观点模式》中,我可以把其中一些内容硬化,即,在法典中制造我的阵列项目,并对此加以约束,但我希望避免这样做,因为这将意味着在法典中硬打上形象,即感觉到图像的道路是标志性宣言。

任何帮助都将受到高度赞赏。

增编

Paul

Answer 1

您是否使用<>ditch ElementName,并使用Source &x:Reference<>> trick?

<Window.Resources>
    <x:Array x:Key="Items" Type="{x:Type customUITypes:ClickableImage}">
        <customUITypes:ClickableImage   x:Name="BitmapAddWorkflow"
               Command="{Binding DataContext.MyCommandOne, Source={x:Reference MainWindow}}">
            <customUITypes:ClickableImage.Bitmap>
                <BitmapImage UriSource="/Images/GalleryWorkflowAdd.png"/>
            </customUITypes:ClickableImage.Bitmap>
        </customUITypes:ClickableImage>
        <customUITypes:ClickableImage  x:Name="BitmapDeleteWorkflow"
               Command="{Binding DataContext.MyCommandTwo, Source={x:Reference MainWindow}}">
            <customUITypes:ClickableImage.Bitmap>
                <BitmapImage UriSource="/Images/GalleryWorkflowDelete.png"/>
            </customUITypes:ClickableImage.Bitmap>
        </customUITypes:ClickableImage>                                        
    </x:Array>
</Window.Resources>
<!-- ... -->
<ribbon:RibbonGallery ItemsSource="{StaticResource Items}" ...

由于周期性依赖,外部化阵列(青年可以努力保持,但一刀切地确保汇编者获得类似的机会)。

或者,你可以从管道标出数据目录:

<Window.Resources>
    <!-- Resource declaration gives you easy access using StaticResource -->
    <FrameworkElement Name="Pipe" Visibility="Hidden"/>
</Window.Resources>
<!-- Place it somewhere in the window where it can inherit the Window s DataContext -->
<StaticResource ResourceName="Pipe"/>
<!-- ... -->
<customUITypes:ClickableImage   x:Name="BitmapAddWorkflow"
    Command="{Binding DataContext.MyCommandOne, Source={StaticResource Pipe}}">

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