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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.

enter image description here

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