You can add a background image to a cell, column, row, or Spread.你可以给一个单元格，一列，一行或者整个表格设置背景图片。
You can load local base 64 bitmap images or images from an image 你可以使用 Base 64 编码的位图（BitMap） 或者一个指向图片的 Uri.
You can specify the background image layout for the cell, column, row, or Spread. You can use the ImageLayout enumeration to specify whether the image is stretched to fill the area, centered, zoomed with the original aspect ratio, or keeps the original size.
Using Code
This example loads images in a cell, column, and row.
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