/// <summary>
/// Move viewport to display the requested part of area.
/// </summary>
/// <param name="rect">Rectangle to display.</param>
public void BringIntoView(Rectangle rect)
{
if (VerticalViewport)
{
rect.Width = Viewport.ClientWidth;
}
else
{
rect.Height = Viewport.ClientHeight;
}
// Ask the actual viewport to perform the action
Viewport.BringIntoView(rect);
}