CODEWITHSUNDEEP
wpftriggersstylesopacity
John
John

Reputation: 101

WPF Opacity in a general style

I have this style that works as expected. I'm trying to generalize it for all controls.

Issue: if I replace the type ComboBox with Control. It does not work anymore. I'm trying to avoid creating a style for each type of control.

<Style TargetType="{x:Type ComboBox}">
<Setter Property="IsEnabled" Value="{Binding Path=myProperty}"/>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="ComboBox.Opacity" Value="1" />
</Trigger>
</Style.Triggers>
</Style>

Upvotes: 1

Views: 1661

Answers (1)

jhh
jhh

Reputation: 673

I don't think there's a way to do exactly what you want. While this won't allow you to avoid defining styles for each type it does cut down on the duplicated code by using BasedOn to inherit the style you define once:

<Resources>
    <Style x:Key="InvisibleWhenDisabled" TargetType="{x:Type Control}">
        <Setter Property="IsEnabled" Value="{Binding Path=myProperty}"/>
        <Style.Triggers>
            <Trigger Property="IsEnabled" Value="False">
                <Setter Property="Opacity" Value="0" />
            </Trigger>
        </Style.Triggers>
    </Style>
    <Style TargetType="ComboBox" BasedOn="{StaticResource InvisibleWhenDisabled}"/>
    <Style TargetType="Button" BasedOn="{StaticResource InvisibleWhenDisabled}"/>
</Resources>

Upvotes: 2

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