[英]Scroll to object on Button click (C# /Xaml)
有没有一种方法可以使xaml页面在单击按钮时滚动到特定对象? 例如,我在页面顶部有三个按钮。 我希望每个按钮都将scrollviewer移动到页面的顶部,中间和底部。 我怎样才能做到这一点? 谢谢!
我尝试创建Xaml并解决该问题。 这是我的解决方案。 这是Xaml代码。
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="100"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<Button HorizontalAlignment="Left" Content="Top" Click="Button_Click" ></Button>
<Button HorizontalAlignment="Center" Content="Center" Click="Button_Click_1" ></Button><Button Content="Botton" HorizontalAlignment="Right" Click="Button_Click_2" ></Button>
<ScrollViewer Grid.Row="1" Name="MyScrollViewer" MaxZoomFactor="9">
<StackPanel>
<TextBlock Name="TextBlock" Height="20"> </TextBlock>
<Rectangle Height="300" Width="100" Fill="BlanchedAlmond"></Rectangle>
<Rectangle Height="300" Width="100" Fill="Blue"></Rectangle>
<Rectangle Height="300" Width="100" Fill="BlueViolet"></Rectangle>
<Rectangle Height="300" Width="100" Fill="Chartreuse"></Rectangle>
<Rectangle Height="300" Width="100" Fill="Crimson"></Rectangle>
</StackPanel>
</ScrollViewer>
</Grid>
这是.cs代码
private void Button_Click(object sender, RoutedEventArgs e)
{
MyScrollViewer.ScrollToVerticalOffset(0);
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
var scrollableHeight = MyScrollViewer.ScrollableHeight;
var height= scrollableHeight / 2;
MyScrollViewer.ScrollToVerticalOffset(height);
}
private void Button_Click_2(object sender, RoutedEventArgs e)
{
MyScrollViewer.ScrollToVerticalOffset(MaxHeight);
}
}
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