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EventTriggerでSetterを使いたかった

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もちろん使えないです。

なのでアニメーションしないアニメーションで対応。

EventTriggerWuthSetter.xaml
<EventTrigger RoutedEvent="UIElement.HogeEvent">
  <BeginStoryboard>
    <Storyboard>
      <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="HogeProperty">
        <DiscreteObjectKeyFrame KeyTime="0">
          <DiscreteObjectKeyFrame.Value>
            <!-- セットしたい値 -->
          </DiscreteObjectKeyFrame.Value>
        </DiscreteObjectKeyFrame>
      </ObjectAnimationUsingKeyFrames>
    </Storyboard>
  </BeginStoryboard>
</EventTrigger>

int 100とかは xmlns:sys="clr-namespace:System;assembly=mscorlib"
sys:Int32100とかでOK。

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