我在UWP应用中使用ScrollView。它支持触摸滚动,但不支持鼠标wheel scroll and drag scroll
。
经过研究,我发现通过定义PointerWheelChanged
事件,它可能会起作用。
XAML代码:
PointerWheelChanged="ScrollViewer_PointerWheelChanged"
C#代码:
private void ScrollViewer_PointerWheelChanged(object sender, PointerRoutedEventArgs e)
{
var scv = (ScrollViewer)sender;
scv.ScrollToHorizontalOffset(scv.HorizontalOffset - e.Delta);
e.Handled = true;
}
但是我收到一些错误消息:
PointerRoutedEventArgs”不包含“ Delta”的定义 并且没有可访问的扩展方法“ Delta”接受 可以找到类型为'PointerRoutedEventArgs'的第一个参数
如何解决?谢谢!
我附上了所有XAML和C#代码供您参考,任何人都可以在VS中对其进行测试。
我可以看到水平滚动条并将其拖动以移动按钮。我可以使用触摸拖动移动的按钮。但是我不能使用鼠标滚轮或用鼠标拖动按钮。
<Page
x:Class="App1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App1"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid>
<Canvas>
<ScrollViewer
Width="400"
Height="150"
PointerWheelChanged="ScrollViewer_PointerWheelChanged"
HorizontalScrollMode="Enabled"
HorizontalScrollBarVisibility="Visible"
VerticalScrollBarVisibility="Hidden">
<StackPanel Orientation="Horizontal">
<Button Width="200">Data 1
</Button>
<Button Width="200">Data 2
</Button>
<Button Width="200">Data 3
</Button>
<Button Width="200">Data 4
</Button>
<Button Width="200">Data 5
</Button>
<Button Width="200">Data 6
</Button>
<Button Width="200">Data 7
</Button>
<Button Width="200">Data 8
</Button>
<Button Width="200">Data 9
</Button>
<Button Width="200">Data 10
</Button>
</StackPanel>
</ScrollViewer>
<Rectangle
Width="200"
Height="135"
Canvas.Left="200"
Fill="Transparent"
Stroke="Red"
StrokeThickness="2"/>
</Canvas>
</Grid>
C#代码:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409
namespace App1
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
}
private void ScrollViewer_PointerWheelChanged(object sender, PointerRoutedEventArgs e)
{
//ScrollViewer scv = (ScrollViewer)sender;
//scv.ScrollToHorizontalOffset(scv.HorizontalOffset - e.Delta);
//e.Handled = true;
Debug.WriteLine("wheel changed................");
}
}
}
答案 0 :(得分:0)
我在UWP应用中使用ScrollView。它支持触摸滚动,但不支持鼠标滚轮和拖动滚动。
UWP ScrollViewer
允许您使用鼠标滚轮滚动内容。我在上面测试了您的代码,效果很好。使用鼠标滚轮时,请将光标悬停在ScrollViewer
上(矩形上方将覆盖ScrollViewer
的一部分)。如果只想水平滚动,则需要禁用垂直滚动。而且drag scroll
行为仅在触摸设备上有效。
<ScrollViewer
Width="400"
Height="150"
HorizontalScrollBarVisibility="Visible"
HorizontalScrollMode="Enabled"
VerticalScrollBarVisibility="Hidden"
VerticalScrollMode="Disabled"
>