Dynamics 365 x++ "=" 错误

错误现象:

1　　 　　OfficeOpenXml.ExcelRange range = cells.get_Item("A1");
2 　　　　range.Style.Font.Bold = true;

规避方法:

1        OfficeOpenXml.ExcelRange range = cells.get_Item("A1");
2        var f = range.Style.Font;
3        f.Bold = true;