Silverlight 工具包 Accordion ScrollViewer

发布于 2025-01-02 02:58:16 字数 1274 浏览 6 评论 0原文

我正在用数据库中的项目填充我的手风琴。我还将我的手风琴包装在 ScrollViewer 中：

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

但是，我找不到一种方法来最初将 ScrollViewer 的 VerticalOffset 显示为 0。每当我的数据库内容加载完成时，它就会继续滚动到底部。我在代码隐藏中尝试过：

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);
 }

但这不起作用。我也尝试过，在 UpdateScrollViewer() 中执行以下操作：

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

这也不起作用。如果我将其保留为 IsHitTestVisible= false，那么它会按我想要的方式工作；但我也希望用户与手风琴进行交互，所以这不是一个永久的解决方案。

原文

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.

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满栀 2025-01-09 02:58:16

我讨厌这样做，但你有以下几点：

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

I hate to do this but thy the following:

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

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