C#•3y ago

XAML Binding error, cannot find source

Hello, I do get a binding error when trying to bind a string from codebehind as content of a ComboBoxItem in CompositeCollection.

<ComboBox.ItemsSource>
    <CompositeCollection>
        <ComboBoxItem Visibility="Collapsed" Content="{Binding Test, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:MultiSelectionDropdown}}}"/>
        <CollectionContainer Collection="{Binding Source={StaticResource ResourceKey=Pipeline}}"/>
    </CompositeCollection>
</ComboBox.ItemsSource>

<ComboBox.ItemsSource>
    <CompositeCollection>
        <ComboBoxItem Visibility="Collapsed" Content="{Binding Test, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:MultiSelectionDropdown}}}"/>
        <CollectionContainer Collection="{Binding Source={StaticResource ResourceKey=Pipeline}}"/>
    </CompositeCollection>
</ComboBox.ItemsSource>

I am trying to bind Test.

2 Replies

Temptica•3y ago

does it successfully build? I've had erros before about binding not being possible. But when I build, it builds succefully

HalfbaxOP•3y ago

It builds

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XAML Binding error, cannot find source