Silverlight Toolkit Accordion ScrollViewer

Question

I am populating my Accordion with items from my database. I have also wrapped my Accordion in a ScrollViewer:

<ScrollViewer Name="LayoutScrollViewer">
    <toolkit:Accordion Name="ItemsAccordion" ItemTemplate="{StaticResource AccordionHeaderTemplate}" ContentTemplate="{StaticResource AccordionContentTemplate}"></toolkit:Accordion>
</ScrollViewer>

However, I cannot find a way to initially show the VerticalOffset of the ScrollViewer to 0. It keeps on scrolling to the bottom whenever my database content is finished loading. I have tried in the codebehind:

void CatalogItem_Loaded(object sender, RoutedEventArgs e)
{
    WebServiceClient client = new WebServiceClient();
    client.GetCatalogItemsAsync(countID);
    client.GetCatalogItemsCompleted += new EventHandler<GetCatalogItemsCompletedEventArgs>(client_GetCatalogItemsCompleted);
}

void client_GetCatalogItemsCompleted(object sender, GetCatalogItemsCompletedEventArgs e)
{
    ItemsAccordion.ItemsSource = e.Result;

    UpdateScrollViewer();
}

 private void UpdateScrollViewer()
 {
     LayoutScrollViewer.ScrollToVerticalOffset(0);
 }

This doesn't work, though. I have also tried, in UpdateScrollViewer() to do:

LayoutScrollViewer.IsHitTestVisible = false;
LayoutScrollViewer.IsHitTestVisible = true;

which doesn't work either. If I leave it as IsHitTestVisible= false, then it works as I would like; but I also want user interaction with the Accordion, so this isn't a permanent solution.

MyKuLLSKI MyKuLLSKI · Accepted Answer · 2012-02-02T20:23:33

I hate to do this but thy the following:

void client_GetCatalogItemsCompleted(object sender, GetCatalogItemsCompletedEventArgs e)
{
    ItemsAccordion.ItemsSource = e.Result;
    UpdateLayout();
    UpdateScrollViewer();
}

Silverlight Toolkit Accordion ScrollViewer

1 Answers