移动事件时未触发按钮单击
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【中文标题】移动事件时未触发按钮单击【英文标题】:Button Click Not Fired on Move Event 【发布时间】:2015-10-18 17:51:35 【问题描述】:我正在尝试在我的应用程序中移动 Button,它工作正常,但 ButtonClick 事件现在没有触发。
代码:
XAML
<Button Content="Button" Height="23" HorizontalAlignment="Left"
Margin="190,108,0,0" Name="button1" VerticalAlignment="Top"
Width="75" MouseLeftButtonUp="button1_MouseLeftButtonUp"
MouseMove="button1_MouseMove" MouseUp="button1_MouseUp" Click="button1_Click"/>
C#
public MainWindow()
InitializeComponent();
button1.PreviewMouseUp += new MouseButtonEventHandler(button1_MouseUp);
button1.PreviewMouseLeftButtonDown += new MouseButtonEventHandler
(button1_MouseLeftButtonUp);
button1.PreviewMouseMove += new MouseEventHandler(button1_MouseMove);
double m_MouseX;
double m_MouseY;
public MainWindow()
InitializeComponent();
button1.PreviewMouseUp += new MouseButtonEventHandler(button1_MouseUp);
button1.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(button1_MouseLeftButtonUp);
button1.PreviewMouseMove += new MouseEventHandler(button1_MouseMove);
private void button1_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
// Get the Position of Window so that it will set margin from this window
m_MouseX = e.GetPosition(this).X;
m_MouseY = e.GetPosition(this).Y;
private void button1_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
if (e.LeftButton == MouseButtonState.Pressed)
// Capture the mouse for border
e.MouseDevice.Capture(button1);
System.Windows.Thickness _margin = new System.Windows.Thickness();
int _tempX = Convert.ToInt32(e.GetPosition(this).X);
int _tempY = Convert.ToInt32(e.GetPosition(this).Y);
_margin = mainGrd.Margin;
// when While moving _tempX get greater than m_MouseX relative to usercontrol
if (m_MouseX > _tempX)
// add the difference of both to Left
_margin.Left += (_tempX - m_MouseX);
// subtract the difference of both to Left
_margin.Right -= (_tempX - m_MouseX);
else
_margin.Left -= (m_MouseX - _tempX);
_margin.Right -= (_tempX - m_MouseX);
if (m_MouseY > _tempY)
_margin.Top += (_tempY - m_MouseY);
_margin.Bottom -= (_tempY - m_MouseY);
else
_margin.Top -= (m_MouseY - _tempY);
_margin.Bottom -= (_tempY - m_MouseY);
mainGrd.Margin = _margin;
m_MouseX = _tempX;
m_MouseY = _tempY;
private void button1_MouseUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
e.MouseDevice.Capture(null);
private void button1_Click(object sender, RoutedEventArgs e)
MessageBox.Show("HI");
button1_Click 永远不会触发,任何建议。 是我做错了什么还是有更好的方法?
【问题讨论】:
将RoutedEventArgs e
更改为EventArgs e
@neiiic 不起作用
【参考方案1】:
这可以防止你的button1_Click
被触发:
e.MouseDevice.Capture(null);
我假设您希望消息框仅在您单击按钮而不拖动它时显示。
我会删除 MouseUp 事件并改为使用:
XAML
PreviewMouseDown="Button1_OnPreviewMouseDown"
C#
double m_MouseX;
double m_MouseY;
double m_ClickedX;
double m_ClickedY;
[...]
private void Button1_OnPreviewMouseDown(object sender, MouseButtonEventArgs e)
m_ClickedX = m_MouseX;
m_ClickedY = m_MouseY;
private void button1_Click(object sender, RoutedEventArgs e)
if (m_ClickedX == m_MouseX && m_ClickedY == m_MouseY)
MessageBox.Show("HI");
if 语句检查你是否移动了按钮,如果按钮没有被移动,则只显示 MessageBox。
【讨论】:
还是一样不触发 这很奇怪,我的发射顺利。这是我的完整代码:pastebin.com/wAknPqZV 忘记从构造函数中移除事件 我可以再抛出一个查询吗? 当然,我猜。与此有关吗?你已经在 SO 上问过了吗?以上是关于移动事件时未触发按钮单击的主要内容,如果未能解决你的问题,请参考以下文章