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  • npoi 设置单元格格式

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using NPOI.HSSF.UserModel;
    using NPOI.SS.Formula.Eval;
    using NPOI.SS.Formula.Functions;
    using NPOI.SS.UserModel;
    using NPOI.XSSF.UserModel;
    using NPOI.POIFS.FileSystem;
    using NPOI.HPSF;
    using System.IO;
    using NPOI.SS.Util;
    using System.Drawing;
    using NPOI.HSSF.Util;
    
    namespace NPOI
    {
        class Program7
        {
            static void Main(string[] args)
            {
                //说明:设置数字格式
    
                //1.创建EXCEL中的Workbook         
                IWorkbook myworkbook = new XSSFWorkbook();
    
                //2.创建Workbook中的Sheet        
                ISheet mysheet = myworkbook.CreateSheet("sheet1");
                mysheet.SetColumnWidth(0, 20 * 256);
                mysheet.SetColumnWidth(1, 20 * 256);
    
                //3.创建Row中的Cell并赋值
                IRow row0 = mysheet.CreateRow(0); row0.CreateCell(0).SetCellValue(2013.143); row0.CreateCell(1).SetCellValue("转化为汉字大写");        
                IRow row1 = mysheet.CreateRow(1); row1.CreateCell(0).SetCellValue(123152013.143); row1.CreateCell(1).SetCellValue("改变小数精度");
                IRow row2 = mysheet.CreateRow(2); row2.CreateCell(0).SetCellValue(123152013.143); row2.CreateCell(1).SetCellValue("分段添加,号");
                IRow row3 = mysheet.CreateRow(3); row3.CreateCell(0).SetCellValue(123152013.143); row3.CreateCell(1).SetCellValue("科学计数法");
                IRow row4 = mysheet.CreateRow(4); row4.CreateCell(0).SetCellValue(-123152013.143); row4.CreateCell(1).SetCellValue("正数与负数的区分(负数红色)");
                IRow row5 = mysheet.CreateRow(5); row5.CreateCell(0).SetCellValue(123152013.77); row5.CreateCell(1).SetCellValue("整数部分+分数");
                IRow row6 = mysheet.CreateRow(6); row6.CreateCell(0).SetCellValue(123152013.77); row6.CreateCell(1).SetCellValue("分数");
                IRow row7 = mysheet.CreateRow(7); row7.CreateCell(0).SetCellValue(0.333); row7.CreateCell(1).SetCellValue("百分数");
    
                //4.创建CellStyle与DataFormat并加载格式样式
                IDataFormat dataformat = myworkbook.CreateDataFormat();
    
                ICellStyle style0 = myworkbook.CreateCellStyle();
                style0.DataFormat = dataformat.GetFormat("[DbNum2][$-804]General");//转化为汉字大写
    
                ICellStyle style1 = myworkbook.CreateCellStyle();
                style1.DataFormat = dataformat.GetFormat("0.0"); //改变小数精度【小数点后有几个0表示精确到小数点后几位】
    
                ICellStyle style2 = myworkbook.CreateCellStyle();
                style2.DataFormat = dataformat.GetFormat("#,##0.0");//分段添加,号
    
                ICellStyle style3 = myworkbook.CreateCellStyle();
                style3.DataFormat = dataformat.GetFormat("0.00E+00");//科学计数法
    
                ICellStyle style4 = myworkbook.CreateCellStyle();
                style4.DataFormat = dataformat.GetFormat("0.00;[Red]-0.00");//正数与负数的区分
    
                ICellStyle style5 = myworkbook.CreateCellStyle();
                style5.DataFormat = dataformat.GetFormat("# ??/??");//整数部分+分数
    
                ICellStyle style6 = myworkbook.CreateCellStyle();
                style6.DataFormat = dataformat.GetFormat("??/??");//分数
    
                ICellStyle style7 = myworkbook.CreateCellStyle();
                style7.DataFormat = dataformat.GetFormat("0.00%");//百分数【小数点后有几个0表示精确到显示小数点后几位】
    
                //5.将CellStyle应用于具体单元格
                row0.GetCell(0).CellStyle = style0;
                row1.GetCell(0).CellStyle = style1;
                row2.GetCell(0).CellStyle = style2;
                row3.GetCell(0).CellStyle = style3;
                row4.GetCell(0).CellStyle = style4;
                row5.GetCell(0).CellStyle = style5;
                row6.GetCell(0).CellStyle = style6;
                row7.GetCell(0).CellStyle = style7;
             
                //6.保存       
                FileStream file = new FileStream(@"E:\myworkbook7.xlsx", FileMode.Create);
                myworkbook.Write(file);
                file.Close();
            }
        }
    }
    

      

    运行后,效果如下图所示【演示了不同数字格式的设置】

    转载:http://blog.csdn.net/xxs77ch/article/details/50237017

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  • 原文地址:https://www.cnblogs.com/duyanming/p/7691981.html
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