Excel自动调整行高不适用于带自动换行的meged单元格

I'm programmatically inserting some text into merged cells in a row. I have Wrap Text set and want the row height to expand as necessary to accommodate multiple lines of text. I was programmatically applying AutoFit once the cells had been filled but that didn't work. I subsequently found a Knowledge Base article saying the AutoFit doesn't work for merged cells! I can try to compute the row height required to accommodate the number of lines of wrapping text. But I don't really want to climb into calculating character widths etc. Any ideas gratefully appreciated.I'm programmatically inserting some text into m