This is mainly for people like me who still need to know this.
majocha , , , MouseUp . , MouseEventArgs, , ? , WPF 2010 .
, WPF 4. MouseMove ListBox :
private void ListBox_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
(sender as ListBox).ReleaseMouseCapture();
}
!