ImageResourceConverter - Binding could be compiled to improve runtime performance if x:DataType is not explicitly null.

[LeoJHarris]

Hi All,

I have enabled the following in my csproj, that is to take advantage of compiled bindings

<MauiEnableXamlCBindingWithSourceCompilation>true</MauiEnableXamlCBindingWithSourceCompilation>
<WarningsAsErrors>$(WarningsAsErrors);XC0022;XC0023</WarningsAsErrors>

When I use the following I get an error that the binding could be compiled to improve runtime performance which I expect but I cannot seem to get past the error

<Image
    Grid.Column="0"
    x:DataType="{x:Null}"
    Aspect="AspectFit"
    HeightRequest="24"
    Source="{Binding Source={StaticResource ConversationImageSource}, Converter={StaticResource ImageResourceConverter}}"
    VerticalOptions="Center"
    WidthRequest="24" />

If I disable/remove the WarningsAsErrors then the x:DataType="{x:Null}" doesn't cause the build error and the image displays but then I lose the benefit of potentially using compiled binding.

Is it possible to use compiled binding in this case so I can keep the WarningsAsErrors enabled?

[bijington]

Why are you setting x:DataType="{x:Null}"? Why can't you specify an actual type for the DataType?

[LeoJHarris]

Using x:DataType="{x:Type Image}" resolved it, I thought there was something else needed here but maybe that's all.