Semi.Avalonia/demo/Semi.Avalonia.Demo/Pages/ScrollViewerDemo.axaml

<UserControl
    x:Class="Semi.Avalonia.Demo.Pages.ScrollViewerDemo"
    xmlns="https://github.com/avaloniaui"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    d:DesignHeight="450"
    d:DesignWidth="800"
    mc:Ignorable="d">
    <ScrollViewer>
        <StackPanel HorizontalAlignment="Left" Spacing="20">
            <ScrollViewer
                Width="200"
                Height="200"
                Margin="10"
                HorizontalScrollBarVisibility="Auto">
                <Grid RowDefinitions="Auto,Auto"
                      ColumnDefinitions="Auto,Auto"
                      Width="300" Height="300">
                    <Rectangle
                        Grid.Row="0" Grid.Column="0"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiYellow2}" />
                    <Rectangle
                        Grid.Row="0" Grid.Column="1"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiBlue2}" />
                    <Rectangle
                        Grid.Row="1" Grid.Column="0"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiPink2}" />
                    <Rectangle
                        Grid.Row="1" Grid.Column="1"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiGreen2}" />
                </Grid>
            </ScrollViewer>
            <ScrollViewer
                Width="200"
                Height="200"
                Margin="10"
                HorizontalScrollBarVisibility="Auto"
                Theme="{DynamicResource StaticScrollViewer}">
                <Grid RowDefinitions="Auto,Auto"
                      ColumnDefinitions="Auto,Auto"
                      Width="300" Height="300">
                    <Rectangle
                        Grid.Row="0" Grid.Column="0"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiYellow2}" />
                    <Rectangle
                        Grid.Row="0" Grid.Column="1"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiBlue2}" />
                    <Rectangle
                        Grid.Row="1" Grid.Column="0"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiPink2}" />
                    <Rectangle
                        Grid.Row="1" Grid.Column="1"
                        Width="150"
                        Height="150"
                        Fill="{DynamicResource SemiGreen2}" />
                </Grid>
            </ScrollViewer>
        </StackPanel>
    </ScrollViewer>
</UserControl>