這個範例示範如何使用 ScrollViewer 元素的捲動方法。 這些方法會在 ScrollViewer 中逐行或逐頁提供內容的累加捲動。
範例
下列範例會建立名為 ScrollViewer 的 sv1，其中裝載子 TextBlock 元素。 因為 TextBlock 大於父 ScrollViewer，因此會顯示捲軸以啟用捲動。
Button 元素，代表各種捲動方法會停駐在個別 StackPanel 的左側。 XAML 檔案中的每個 Button 都會呼叫相關聯的自訂方法，控制 ScrollViewer 中的捲動行為。
<StackPanel DockPanel.Dock="Left" Width="150">
<Button Margin="3,0,0,2" Background="White" Click="svLineUp">Adjust Line Up</Button>
<Button Margin="3,0,0,2" Background="White" Click="svLineDown">Adjust Line Down</Button>
<Button Margin="3,0,0,2" Background="White" Click="svLineRight">Adjust Line Right</Button>
<Button Margin="3,0,0,2" Background="White" Click="svLineLeft">Adjust Line Left</Button>
<Button Margin="3,0,0,2" Background="White" Click="svPageUp">Adjust Page Up</Button>
<Button Margin="3,0,0,2" Background="White" Click="svPageDown">Adjust Page Down</Button>
<Button Margin="3,0,0,2" Background="White" Click="svPageRight">Adjust Page Right</Button>
<Button Margin="3,0,0,2" Background="White" Click="svPageLeft">Adjust Page Left</Button>
<TextBlock Name="txt2" TextWrapping="Wrap"/>
</StackPanel>
<Border BorderBrush="Black" Background="White" BorderThickness="2" Height="520" Width="520" VerticalAlignment="Top">
<ScrollViewer VerticalScrollBarVisibility="Visible" HorizontalScrollBarVisibility="Auto" Name="sv1">
<TextBlock TextWrapping="Wrap" Width="800" Height="1000" Name="txt1"/>
</ScrollViewer>
</Border>
private void svLineUp(object sender, RoutedEventArgs e)
{
sv1.LineUp();
}
private void svLineDown(object sender, RoutedEventArgs e)
{
sv1.LineDown();
}
Private Sub svLineUp(ByVal sender As Object, ByVal args As RoutedEventArgs)
sv1.LineUp()
End Sub
Private Sub svLineDown(ByVal sender As Object, ByVal args As RoutedEventArgs)
sv1.LineDown()
End Sub
