Implement MultiDataTrigger like WPF in Style

I can’t implement a function similar to the MultiDataTrigger in the Avalonia Style. In WPF, it looks like:

<MultiDataTrigger>
    <MultiDataTrigger.Conditions>
        <Condition Binding="{Binding IsPressed, RelativeSource={RelativeSource Self}, Mode=OneWay}"
                   Value="True" />
        <Condition Binding="{Binding Path=(local:CustomHelper.PressedForeground), Converter={StaticResource {x:Static IsNonnullConverter}}, RelativeSource={RelativeSource Self}, Mode=OneWay}"
                   Value="True" />
    </MultiDataTrigger.Conditions>
    <Setter TargetName="BdrMain"
            Property="Background"
            Value="{Binding Path=(local:CustomHelper.PressedForeground), RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}" />
</MultiDataTrigger>

Is there a similar implementation in Avalonia?

[maxkatz6]

Instead of {StaticResource IsNotnullConverter} you can use {x:Static ObjectConverters.IsNotNull} - build in converter.

[maxkatz6]

1. You can define class having boolean binding:

<Border Classes.my-class="{Binding Property, Converter={x:Static Converter}}" />

1. Then you can combine selectors in styles:

<Style Selector="Border[IsPressed=True].my-class">
   <Setter />
</Style>

It’s not exactly the same, but allow to implement quite a lot.

but I did not find anything similar to MultiDataTrigger. Moreover, I’m not sure that this can be used to change the Selector

To change property - use ChangePropertyAction, to set class (and trigger style selector) - use AddClassAction. I am not sure if there are composite triggers with Or/And conditions, but I would expect it. @wieslawsoltes