NPOI格式设置

1、普通

　　   HSSFSheet lo_sheet = (HSSFSheet)lo_workbook.CreateSheet("sheet");

         HSSFCellStyle lo_Style = (HSSFCellStyle)lo_workbook.CreateCellStyle();
         lo_Style.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");

2、特殊 如金额

            // 金额
            CellStyle styleMony = workbook.CreateCellStyle();
            DataFormat format = workbook.CreateDataFormat();
            styleMony.DataFormat = format.GetFormat("$#,##0.00");

发现一个问题如果时间设置格式为d-mmm-yy：

　　      CellStyle styledate= workbook.CreateCellStyle();
            DataFormat format = workbook.CreateDataFormat();
            styledate.DataFormat = format.GetFormat("d-mmm-yy");

实际格式是d-mmm；

用下面的方法可以：

            CellStyle styledate= workbook.CreateCellStyle();
            // DataFormat formatTime = workbook.CreateDataFormat();
            styledate.DataFormat = 0xf; //d-mmm-yy

这个问题可能是我的NPOI的版本问题。版本是1.2.3.0

         另外附下源码中的注释部分，关于HSSFDataFormat参数的

          0, "General"
           1, "0"
           2, "0.00"
           3, "#,##0"
           4, "#,##0.00"
           5, "($#,##0_);($#,##0)"
           6, "($#,##0_);[Red]($#,##0)"
           7, "($#,##0.00);($#,##0.00)"
           8, "($#,##0.00_);[Red]($#,##0.00)"
           9, "0%"
           0xa, "0.00%"
           0xb, "0.00E+00"
           0xc, "# ?/?"
           0xd, "# ??/??"
           0xe, "m/d/yy"
           0xf, "d-mmm-yy"
           0x10, "d-mmm"
           0x11, "mmm-yy"
           0x12, "h:mm AM/PM"
           0x13, "h:mm:ss AM/PM"
           0x14, "h:mm"
           0x15, "h:mm:ss"
           0x16, "m/d/yy h:mm"
   
            0x17 - 0x24 reserved for international and Undocumented
           0x25, "(#,##0_);(#,##0)"
           0x26, "(#,##0_);[Red](#,##0)"
           0x27, "(#,##0.00_);(#,##0.00)"
           0x28, "(#,##0.00_);[Red](#,##0.00)"
           0x29, "_(///#,##0_);_(///(#,##0);_(/// \"-\"_);_(@_)"
           0x2a, "_($///#,##0_);_($///(#,##0);_($/// \"-\"_);_(@_)"
           0x2b, "_(///#,##0.00_);_(///(#,##0.00);_(///\"-\"??_);_(@_)"
           0x2c, "_($///#,##0.00_);_($///(#,##0.00);_($///\"-\"??_);_(@_)"
           0x2d, "mm:ss"
           0x2e, "[h]:mm:ss"
           0x2f, "mm:ss.0"
           0x30, "##0.0E+0"
           0x31, "@" - This Is text format.
           0x31  "text" - Alias for "@"