c# – WPF单击按钮Scrollviewer
作者：互联网
我有一个问题,我在StackPanel内有一个菜单,这是在ScrollViewer内部.现在,即使水平滚动条被隐藏,也可以水平滚动.现在的主要问题是,我无法为按钮制作Clickevent.似乎我的Scroll Event阻止了它下面的东西.
XAML代码
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="110"/>
<RowDefinition Height="*"/>
<RowDefinition Height="100"/>
</Grid.RowDefinitions>
<Rectangle x:Name="rectangel1" Grid.RowSpan="3">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF0036A0" Offset="0.003"/>
<GradientStop Color="#FFE9EDFF" Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Grid Grid.Column="1" Grid.ColumnSpan="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="750"/>
<ColumnDefinition Width="20"/>
</Grid.ColumnDefinitions>
<ScrollViewer x:Name="scrollviewer1" Grid.Column="1" Grid.ColumnSpan="2"
HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Disabled"
PanningMode="HorizontalOnly"
MouseUp="UIElement_OnMouseUp"
PreviewMouseLeftButtonDown="UIElement_OnPreviewMouseLeftButtonDown"
PreviewMouseMove="UIElement_OnPreviewMouseMove" Cursor="Hand">
<StackPanel Orientation="Horizontal" Grid.Column="1" Grid.ColumnSpan="1">
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn1" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 1" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn2" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 2" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<!--<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn3" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="Station 3" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>-->
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Button x:Name="btn3" Content="Station 3" Click="btn3_Click" Style="{DynamicResource ButtonStyle1}" >
<Button.Resources>
<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#F3F3F3" Offset="0"/>
<GradientStop Color="#EBEBEB" Offset="0.5"/>
<GradientStop Color="#DDDDDD" Offset="0.5"/>
<GradientStop Color="#CDCDCD" Offset="1"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/>
<Style x:Key="ButtonStyle1" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/>
<Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/>
<Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Rectangle Fill="#FFFFA6A6" RadiusY="10" RadiusX="10"/>
<Label x:Name="label" Content="BUTTON" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsKeyboardFocused" Value="true"/>
<Trigger Property="ToggleButton.IsChecked" Value="true"/>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="#ADADAD"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Resources>
</Button>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn4" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 4" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn5" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 5" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn6" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 6" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn7" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 7" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,10,10">
<Rectangle x:Name="btn8" Fill="#FFF39999" RadiusX="10" RadiusY="10" />
<Label Content="No Btn 8" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<Grid Width="87" Height="90" Margin="10,10,50,10">
<Button x:Name="btn9" Content="Station 9" Click="btn9_Click" Style="{DynamicResource ButtonStyle1}" >
<Button.Resources>
<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#F3F3F3" Offset="0"/>
<GradientStop Color="#EBEBEB" Offset="0.5"/>
<GradientStop Color="#DDDDDD" Offset="0.5"/>
<GradientStop Color="#CDCDCD" Offset="1"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/>
<Style x:Key="ButtonStyle1" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/>
<Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/>
<Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Rectangle Fill="#FFFFA6A6" RadiusY="10" RadiusX="10"/>
<Label x:Name="label" Content="Button 9" HorizontalAlignment="Center" VerticalAlignment="Bottom" FontSize="16" FontWeight="Bold"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsKeyboardFocused" Value="true"/>
<Trigger Property="ToggleButton.IsChecked" Value="true"/>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="#ADADAD"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Resources>
</Button>
</Grid>
</StackPanel>
</ScrollViewer>
<Rectangle x:Name="rectlinks" Grid.Column="0" Fill="#FFFF7676" MouseEnter="rectlinks_MouseEnter" />
<Rectangle x:Name="rectrechts" Grid.Column="2" MouseEnter="rectrechts_MouseEnter" Fill="#FFFF7474" />
</Grid>
<Label x:Name="label1" Content="Wert"/>
<Label x:Name="label2" Content="mehr" Margin="0,50,0,0"/>
</Grid>
C#代码
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace ScrollMenue
{
/// <summary>
/// Interaktionslogik für MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
private double hOff;
public MainWindow()
{
InitializeComponent();
}
private void rectrechts_MouseEnter(object sender, MouseEventArgs e)
{
label1.Content = "rechts";
scrollviewer1.LineRight();
}
private void rectlinks_MouseEnter(object sender, MouseEventArgs e)
{
if (rectlinks.IsMouseOver == true)
{
scrollviewer1.ScrollToHorizontalOffset(scrollviewer1.HorizontalOffset + 10);
label1.Content = "links";
scrollviewer1.LineLeft();
}
}
private Point scrollMousePoint;
private void UIElement_OnMouseUp(object sender, MouseButtonEventArgs e)
{
scrollviewer1.ReleaseMouseCapture();
}
private void UIElement_OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
scrollviewer1.CaptureMouse();
scrollMousePoint = e.GetPosition(scrollviewer1);
hOff = scrollviewer1.HorizontalOffset;
}
private void UIElement_OnPreviewMouseMove(object sender, MouseEventArgs e)
{
if (scrollviewer1.IsMouseCaptured)
{
scrollviewer1.ScrollToHorizontalOffset(hOff + (scrollMousePoint.X - e.GetPosition(scrollviewer1).X));
}
}
private void btn9_Click(object sender, RoutedEventArgs e)
{
label2.Content = "Click";
}
private void btn3_Click(object sender, RoutedEventArgs e)
{
label2.Content = "Click";
}
}
}
解决方法:
我找到了你的解决方案
我只是按一个按钮,但你可以为所有人做,
private void UIElement_OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (e.Source == btn3)
{ btn3_Click(sender, e); }
scrollMousePoint = e.GetPosition(scrollviewer1);
hOff = scrollviewer1.HorizontalOffset;
scrollviewer1.CaptureMouse();
}
private void btn9_Click(object sender, RoutedEventArgs e)
{
label2.Content = "i AM WORKING"; //You can press and still scroll
}
更新：
从你说的评论你现在想要触摸时不要触发按钮,因为你可能只想滚动,你需要实现某种类型的逻辑,如一个保持手势,这里是一个帖子
Do WPF have Touch-and-Hold gesture?
更新2：
我做到了,这是一个非常简单的解决方案,
在xaml中为PreviewMouseLeftButtonUp添加另一个处理程序,然后在代码后面(c#)执行此操作：
private DateTime mouseTimer;
private void UIElement_OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
mouseTimer = DateTime.Now;
scrollviewer1.CaptureMouse();
scrollMousePoint = e.GetPosition(scrollviewer1);
hOff = scrollviewer1.HorizontalOffset;
}
private void scrollviewer1_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
TimeSpan difference = DateTime.Now - mouseTimer;
if (difference.TotalSeconds < 1)
{
btn3_Click(sender, e);
}
else
return;
}
所以现在,如果它是一个Click,它会打开,但你按住了点击,它只会滚动,dateTime的用法非常棒
标签：c,wpf,xaml,scrollviewer 来源： https://codeday.me/bug/20190706/1393156.html