Allow for conditional style classes in DataGridTemplateColumn.CellStyleClasses to style cells individually based on a data binding

[s-sarunas]

Is your feature request related to a problem? Please describe.

It doesn't seem possible to add conditional style classes to the DataGridTemplateColumn.CellStyleClasses property in a DataGrid:

<DataGridTemplateColumn.CellStyleClasses>
    <Classes>
        <!--<Class Binding={...}-->
    </Classes>
</DataGridTemplateColumn.CellStyleClasses>

This would allow cells within a column to be styled differently based on a binding, e.g. disabling them.

Describe the solution you'd like

Allow to assign conditonal style classes on all DataGrid cells of that column:

<DataGridTemplateColumn.CellStyleClasses>
    <Classes>
        <!--<Class Binding={...}-->
    </Classes>
</DataGridTemplateColumn.CellStyleClasses>

Similar to conditional style classes for other controls:

<Button Classes.accent="{Binding IsSpecial}" />

Describe alternatives you've considered

It's possible to disable cells of a column when binding to the IsEnabled property of DataGridCell:

<ControlTheme x:Key="ControlThemeName"
              TargetType="{x:Type DataGridCell}"
              BasedOn="{StaticResource {x:Type DataGridCell}}">
    <Setter Property="IsEnabled"
            Value="{Binding Property}" />
</ControlTheme>

<Style Selector="DataGridCell[IsEnabled=False]">
    <Setter Property="Background"
            Value="Red" />
</Style>

<DataGridTemplateColumn CellTheme="{StaticResource ControlThemeName}">

While multiple conditions can be combined and bound to IsEnabled property with a MultiBinding, there's no way to style the DataGridCells differently (in my case to add a tooltip).

I have tried using a behavior on the DataGridTemplateColumn similar to the following example: https://github.com/wieslawsoltes/Avalonia.Xaml.Behaviors/blob/master/samples/BehaviorsTestApplication/Views/Pages/AddRemoveClassActionView.axaml

However, I don't think there's a way to reference the DataGridCell or the DataGridRow from within a DataGridTemplateColumn using a relative binding.

Additional context

No response