private void ImgMain_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var tt = (TranslateTransform)((TransformGroup)ImgMain.RenderTransform).Children.First(tr => tr is TranslateTransform);
_panStartPosition = e.GetPosition(GrdImageContainer);
_panOrigin = new Point(tt.X, tt.Y);
ImgMain.CaptureMouse();
}
private void ImgMain_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
ImgMain.ReleaseMouseCapture();
}
