private void DrawBackground(CGContext context)
{
context.SetFillDialogBorderColor();
context.AddRect(
new RectangleF(Frame.X - Border,
Frame.Y - Border,
Frame.Width + 2 * Border,
Frame.Height + 2 * Border));
context.DrawPath(CGPathDrawingMode.Fill);
context.SetFillDialogBackgroungColor();
context.AddRect(Frame);
context.DrawPath(CGPathDrawingMode.Fill);
}
