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Asked: 2026-06-11T22:07:33+00:00

I have a Button and its Style: <Button Name=MyBtn Style={StaticResource ButtonEnabledStyle} IsEnabled=False Opacity=1 />

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I have a Button and its Style:

<Button Name="MyBtn" Style="{StaticResource ButtonEnabledStyle}"
        IsEnabled="False" Opacity="1" />

<Style x:Key="ButtonEnabledStyle" TargetType="Button">
    <Style.Triggers>
        <Trigger Property="IsEnabled" Value="True" >
            <Setter Property="Opacity" Value="0.1" />
        </Trigger>
    </Style.Triggers>
</Style>

But when I enable the Button (MyBtn.IsEnabled = true) it does not change its Opacity. Why? How can I solve this problem? Thanks.

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1 Answer

  1. Editorial Team

    A local value set on the element (Opacity="1" in your code) will always take precedence over a style or style trigger value. Please have a look at Dependency Property Setting Precedence List.

    An easy fix is to set the default value on the style instead:

    <Style x:Key="ButtonEnabledStyle" TargetType="Button">
  <Setter Property="Opacity" Value="1.0" />
  <Style.Triggers>
    <Trigger Property="IsEnabled" Value="True" >
      <Setter Property="Opacity" Value="0.1" />
    </Trigger>
  </Style.Triggers>
</Style>
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