为什么 e.Handled = true 不起作用？
我在后面的 XAML 代码中执行
<StackPanel MouseEnter="StackPanel_MouseEnter" Height="130" Background="Blue">
<Grid MouseEnter="Grid_MouseEnter" Height="60" Background="Red" >
<Button MouseEnter="Button_MouseEnter" Height="20"/>
</Grid>
</StackPanel>
此操作
private void StackPanel_MouseEnter(object sender, MouseEventArgs e)
{
}
private void Grid_MouseEnter(object sender, MouseEventArgs e)
{
e.Handled = true;
}
private void Button_MouseEnter(object sender, MouseEventArgs e)
{
e.Handled = true;
}
现在，即使我将鼠标移到 Button 上并设置 e.Handled = true，Grid 的事件code> 和 StackPanel 分别被调用。为什么？我应该怎么做才能阻止路由事件冒泡？
I have following XAML
<StackPanel MouseEnter="StackPanel_MouseEnter" Height="130" Background="Blue">
<Grid MouseEnter="Grid_MouseEnter" Height="60" Background="Red" >
<Button MouseEnter="Button_MouseEnter" Height="20"/>
</Grid>
</StackPanel>
In code behind I am doing this
private void StackPanel_MouseEnter(object sender, MouseEventArgs e)
{
}
private void Grid_MouseEnter(object sender, MouseEventArgs e)
{
e.Handled = true;
}
private void Button_MouseEnter(object sender, MouseEventArgs e)
{
e.Handled = true;
}
Now even if I move mouse over Button and set e.Handled = true, the events of Grid and StackPanel are called respectively. Why? What should I do to stop routed event from bubbling up?
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MouseEnter 事件不是冒泡事件，它是直接事件（如经典的 CLR 事件）。来自文档：
所以你无法阻止它被解雇给父母。您可以使用 IsMouseDirectlyOver 属性来查看鼠标是否确实在但仅在给定元素上。
The MouseEnter event is not a bubbling event, it is a direct event (like classic CLR events). From the documentation:
So you can't prevent it from being fired on the parents. You can use the IsMouseDirectlyOver property to see if the mouse is in fact only over the given element though.