没有有效的RoutedEventHandler

Question

<Style TargetType="ComboBoxItem" x:Key="ComboBoxItemStyle">
            <EventSetter Event="Selected" Handler="status_SelectionChanged"/>
</Style>

status_SelectionChanged方法：

public void status_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    MessageBox.Show("1");
}

  

错误：无效的System.Windows.RoutedEventHandler

为什么？

Answer 1

我相信SelectionChanged的方法签名应该使用RoutedEventArgs e而不是SelectionChangedEventArgs e

Here is the MSDN showing the RoutedEventHandler signature

Answer 2

尝试

private void status_SelectionChanged(object sender, RoutedEventArgs e)

请参阅ListBoxItem.Selected