ZedGraph-在两行之间填充

你好.
我需要绘制两条线(曲线)并填充它们之间的空间(例如红色).这类似于某些测试值的可接受值范围.也许您对此问题有一些通用的解决方案?
用红色填充绘制较高的线，用白色填充绘制较低的线是错误的，因为当我在下面放置另一个这样的范围时，由于白色填充较高而将不可见.

Hi there.
I need to paint two lines(curves) and fill space between them(for example red color). This will be something like range of acceptable values for some test values. Maybe you have some generic sollution for this problem?
Drawing upper line with red fill and lower with white fill is wrong because when I put another range like this below it will not be visible because of upper white fill.