WPF: binding conditions to properties, XamlParseException using

I'm having trouble with Conditionfor MultiTrigger. If I do the following:

<Condition Binding="{Binding RelativeSource={RelativeSource
    AncestorType={x:Type ListView}}}" Property="IsEnabled" Value="True"/>

Then I get this exception:

The condition cannot use property and binding. Error in object "System.Windows.Condition" in markup file

However, when I do the following:

<Condition Binding="{Binding RelativeSource={RelativeSource
    AncestorType={x:Type ListView}}, Path=IsEnabled}" Value="True"/>

Then I get this exception:

You must specify both the property and the value for the trigger. Error in object "System.Windows.Condition" in markup file

What gives? If that matters, here's the whole trigger:

<MultiTrigger>
    <MultiTrigger.Conditions>
        <Condition Binding="{Binding Path=IsSelected}" Value="True"/>
        <Condition Binding="{Binding Path=ItemsControl.AlternationIndex}"
                   Value="0"/>
        <Condition Binding="{Binding RelativeSource={RelativeSource
            AncestorType={x:Type ListView}}, Path=IsEnabled}"
                   Value="True"/>
    </MultiTrigger.Conditions>
    <Setter Property="Background"
            Value="{StaticResource evenSelected}" />
    <Setter Property="BorderBrush"
            Value="{StaticResource evenSelectedBorder}" />
</MultiTrigger>
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1 answer

API . Condition , . MultiTrigger Property Value. MultiDataTrigger ( , ) Binding Value. , MultiDataTrigger, :

<MultiDataTrigger>
    <MultiDataTrigger.Conditions>
        <Condition Binding="{Binding Path=IsSelected}" Value="True"/>
        <Condition Binding="{Binding Path=ItemsControl.AlternationIndex}"
                   Value="0"/>
        <Condition Binding="{Binding RelativeSource={RelativeSource
            AncestorType={x:Type ListView}}, Path=IsEnabled}"
                   Value="True"/>
    </MultiDataTrigger.Conditions>
    <Setter Property="Background"
            Value="{StaticResource evenSelected}" />
    <Setter Property="BorderBrush"
            Value="{StaticResource evenSelectedBorder}" />
</MultiDataTrigger>
+10

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