ScrollViewer "trims" bottom part of content.

ScrollViewer (and controls that uses it) “trims” bottom part of content, when vertical scrollbar is visible. Some examples:

Without vertical scrollbar:

With vertical scrollbar:

As you see, some sentences are missed.

Code snippet, that can be used for reproducing a problem:

<ScrollViewer VerticalScrollBarVisibility="Auto">
    <TextPresenter Text="{Binding Text}" TextWrapping="Wrap" />
</ScrollViewer>

[grokys]

So you’re using TextPresenter in a control template, is that correct? I’m not able to reproduce this on master with the following xaml in ControlCatalog.Pages.TextBoxPage:

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="ControlCatalog.Pages.TextBoxPage">
    <UserControl.Styles>
        <Style Selector="TextBox">
            <Setter Property="Template">
                <ControlTemplate>
                    <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto" >
                        <TextPresenter Name="PART_TextPresenter" TextWrapping="Wrap" Text="{TemplateBinding Text}" />
                    </ScrollViewer>
                </ControlTemplate>
            </Setter>
        </Style>
    </UserControl.Styles>
    <TextBox Width="200" Height="100" Margin="8">
        Multiline TextBox with no TextWrapping.&#xD;&#xD;Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus magna. Cras in mi at felis aliquet congue. Ut a est eget ligula molestie gravida. Curabitur massa. Donec eleifend, libero at sagittis mollis, tellus est malesuada tellus, at luctus turpis elit sit amet quam. Vivamus pretium ornare est.
    </TextBox>
</UserControl>

It could be that we’ve already fixed this since 0.8.1, or could be that your code is doing something different. Could you give some more details, or even a repro in ControlCatalog?

[grokys]

Closing this due to inactivity.