How to manually scroll using ItemsRepeater

问题

I'm using ItemsRepeater. And using a ScrollViewer to scroll left/right.

For some reason, I have to disable ScrollViewer' HorizontalScrollMode, and add Left/Right Button to manual scroll.

The xaml is

<Grid>
                    <muxc:ItemsRepeaterScrollHost Margin="12" Loaded="ItemsRepeaterScrollHost_Loaded">
                        <ScrollViewer
                            x:Name="sss"
                            VerticalScrollBarVisibility="Hidden"
                            HorizontalScrollBarVisibility="Hidden"
                            VerticalScrollMode="Disabled"
                            HorizontalScrollMode="Disabled">
                            <muxc:ItemsRepeater
                                x:Name="HorizontalRepeater"
                                ItemsSource="{x:Bind product}"
                                ItemTemplate="{StaticResource HorizontalTemplate}">
                                <muxc:ItemsRepeater.Layout>
                                    <muxc:StackLayout Orientation="Horizontal" Spacing="12"/>
                                </muxc:ItemsRepeater.Layout>
                            </muxc:ItemsRepeater>
                        </ScrollViewer>
                    </muxc:ItemsRepeaterScrollHost>
                    <Button
                        x:Name="ButtonLeft"
                        Tapped="ButtonLeft_Tapped">
                        <FontIcon FontFamily="Segoe MDL2 Assets" Glyph="&#xE76B;" FontSize="18" />
                    </Button>

                    <Button x:Name="ButtonRight"
                        Tapped="ButtonRight_Tapped">
                        <FontIcon FontFamily="Segoe MDL2 Assets" Glyph="&#xE76C;" FontSize="18" />
                    </Button>
                </Grid>

Then I use

sss.ChangeView(step, null, null);

Nothing happens. Why, thx.

回答1:

How to manually scroll using ItemsRepeater

For my testing, ChangeView can't works for ItemsRepeater, Please try replace it with ScrollToHorizontalOffset or ScrollToVerticalOffset method.

Update

After update OS to latest version (1909) ChangeView works well, It may be a issue within previous version.

来源：https://stackoverflow.com/questions/58815861/how-to-manually-scroll-using-itemsrepeater