如何在 WPF 中检测鼠标双击左键？
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How do you detect a mouse double left click in WPF?
提问by AlexPi
In .NET 4.0 WPF, how do you detect a double-click by the leftmouse button?
在.NET 4.0中WPF，你怎么检测通过双击左侧的鼠标按钮？
A seemingly trivial task.
一个看似微不足道的任务。
I don't see a way of determining which button was pressed in the MouseDoubleClickevent using the System.Windows.Input.MouseButtonEventArgs.
我没有看到MouseDoubleClick使用System.Windows.Input.MouseButtonEventArgs.
回答by Reed Copsey
MouseDoubleClickpasses MouseButtonEventArgsas the event arguments. This exposes the ChangedButtonproperty, which tells you which button was double clicked.
MouseDoubleClickMouseButtonEventArgs作为事件参数传递。这将公开ChangedButton属性，该属性告诉您双击了哪个按钮。
void OnMouseDoubleClick(Object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Left)
{
// Left button was double clicked
}
}
回答by N_A
Are you looking for MouseButtonEventArgs.ChangedButton? API here.
你在找MouseButtonEventArgs.ChangedButton吗？API在这里。
private void MouseButtonDownHandler(object sender, MouseButtonEventArgs e)
{
Control src = e.Source as Control;
if (src != null)
{
switch (e.ChangedButton)
{
case MouseButton.Left:
src.Background = Brushes.Green;
break;
case MouseButton.Middle:
src.Background = Brushes.Red;
break;
case MouseButton.Right:
src.Background = Brushes.Yellow;
break;
case MouseButton.XButton1:
src.Background = Brushes.Brown;
break;
case MouseButton.XButton2:
src.Background = Brushes.Purple;
break;
default:
break;
}
}
}
