adorner

I've got a user control with a control template to show validation errors, validation template: <ControlTemplate x:Key="TextBoxPropertyValidationTemplate"> <StackPanel> <Border BorderBrush="Red" BorderThickness="1"> <AdornedElementPlaceholder x:Name="MyAdorner" /> </Border> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Image Grid.Column="0" MaxHeight="16" MaxWidth="16" Source="{Binding Source={StaticResource ValidationIcon}, Converter={StaticResource UriConverter}}" Margin="1" RenderOptions.BitmapScalingMode=

It appears that the maximum number of adorners that work without any breakage is 144. I have a ScrollView with a bunch of objects, and many of them come with adorners. The first 144 adorners are positioned correctly, but the rest are not. Note that it is an exceptional situation when there are so many; usually there are exactly zero adorners. Nevertheless, I'd like this to work properly even on that exceptional occasion. Leaving aside how this arbitrary (and very low) limit makes me feel, are there any practical work-arounds for this bug? At this time there is no known way of doing this. Which