Problem in raising the event

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if (currentDesigner != null)
{
e = new MouseButtonEventArgs(InputManager.Current.PrimaryMouseDevice,
e.Timestamp,
MouseButton.Left);

currentDesigner.OnMouseLeftButtonDown(sender as AnnContainer, e);
}

In above mentioned code i am getting an exception in last line(currentDesigner.OnMouseLeftButtonDown(sender as AnnContainer, e);)

Exception:Every routedeventargs must have a non-null routed event associated with it.

Please reply as soon as possible

What I have tried:

I try to make e.Handled=false but its not working

Posted 19-Aug-16 2:38am

Member 11559270

Updated 19-Aug-16 4:03am

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Richard Deeming · Answer 1 · 2016-08-19T04:03:00

As the error message says, you need to set the RoutedEvent property of the MouseButtonEventArgs to the routed event you're raising.

Something like this should work:

C#

e = new MouseButtonEventArgs(InputManager.Current.PrimaryMouseDevice, e.Timestamp, MouseButton.Left);
e.RoutedEvent = UIElement.MouseLeftButtonDownEvent;
currentDesigner.OnMouseLeftButtonDown(sender as AnnContainer, e);