private void ViewPort_MouseUp(object sender, MouseButtonEventArgs e)
{
if (e.MiddleButton == MouseButtonState.Released)
{
moving = false;
}
if (ViewPort.Children.Contains(selectionRect))
{
//determine nodes to add to selection
DetermineSelection();
}
ViewPort.ReleaseMouseCapture();
ViewPort.Children.Remove(selectionRect);
}
private void ViewPort_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
ViewPort.ReleaseMouseCapture();
}