问题
I have a WPF user control that is dervied from UserControl class. MouseLeftButtonDown is not getting fired at all for the contol. I added event handler and also tried as follows. I guess it is handled somewhere else, how to debug and find where is it getting hanlded.. Any help is appreciated!
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
}
回答1:
Did you have the Background of the UserControl set to something? If not, try setting it to "Background=Transparent" and see if that works. If it doesn't work, can you post the XAML for your UserControl, as well as the XAML for its usage?
来源：https://stackoverflow.com/questions/3602250/mouseleftbuttondown-is-not-getting-fired