背景属性不指向路径的DependencyObject'（0）（1）“ [英] Background property does not point to a dependencyobject in path '(0).(1)'

问题描述

我写这篇code，并得到例外：背景属性没有指向的DependencyObject路径。（0）（1）

I wrote this code and got exception: Background property does not point to a dependencyobject in path '(0).(1)'

中的我其他帖子看到这个问题在论坛上但没有建立一个解决方案。

I saw this problem in other posts in the forum but didnt founded a solution.

<WrapPanel.Style>
  <Style>
    <Style.Triggers>
      <Trigger Property "WrapPanel.Visibility" Value="Visible">                            
        <Trigger.EnterActions>
          <BeginStoryboard HandoffBehavior="Compose">
            <Storyboard RepeatBehavior="Forever" AutoReverse="True">
              <ColorAnimation 
                Storyboard.TargetProperty="(WrapPanel.Background).(SolidColorBrush.Color)"
                Duration="00:00:01" To="Red"/>
            </Storyboard>
          </BeginStoryboard>
        </Trigger.EnterActions>
      </Trigger>
    </Style.Triggers>
  </Style>
</WrapPanel.Style>

任何帮助？
谢谢

Any help with this? Thanks

推荐答案

您最有可能无法设置为初始背景画笔的值。你可以用一种风格的setter这样做，否则干脆直接在面板上设置一个值。风格二传手可能是更好的：

You most likely failed to set a value for the initial background brush. You can either do so with a style setter, or else just set a value on the panel directly. The style setter is probably better:

<Setter Property="Background">
    <Setter.Value>
        <SolidColorBrush Color="Blue"/>
    </Setter.Value>
</Setter>

请注意，您也可以指定你的风格的的TargetType 属性，这样你就不必preFIX与 WrapPanel ：

Note that you can also specify the TargetType property on your style, so that you don't have to prefix all property reference with WrapPanel:

<Style TargetType="WrapPanel">

这篇关于背景属性不指向路径的DependencyObject'（0）（1）“的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！