NPOI 1.2.3教程 - 4 基本公式 BasicFormula

using System;using System.Text;using System.IO;using NPOI.HSSF.UserModel;using NPOI.HPSF;using NPOI.POIFS.FileSystem;using NPOI.SS.UserModel;namespace UseBasicFormulaInXls{ class Program { static void Main(string[] args) { InitializeWorkbook(); Sheet s1=hssfworkbook.CreateSheet("Sheet1"); //set A2 s1.CreateRow(1).CreateCell(0).SetCellValue(-5); //set B2 s1.CreateRow(1).CreateCell(1).SetCellValue(1111); //set C2 s1.CreateRow(1).CreateCell(2).SetCellValue(7.623); //set A3 s1.CreateRow(2).CreateCell(0).SetCellValue(2.2); //set A4=A2+A3 s1.CreateRow(3).CreateCell(0).CellFormula = "A2+A3"; //set D2=SUM(A2:C2); s1.CreateRow(1).CreateCell(3).CellFormula = "SUM(A2:C2)"; //set A5=cos(5)+sin(10) s1.CreateRow(4).CreateCell(0).CellFormula="cos(5)+sin(10)"; //create another sheet Sheet s2 = hssfworkbook.CreateSheet("Sheet2"); //set cross-sheet reference s2.CreateRow(0).CreateCell(0).CellFormula = "Sheet1!A2+Sheet1!A3"; WriteToFile(); } static HSSFWorkbook hssfworkbook; static void WriteToFile() { //Write the stream data of workbook to the root directory FileStream file = new FileStream(@"test.xls", FileMode.Create); hssfworkbook.Write(file); file.Close(); } static void InitializeWorkbook() { hssfworkbook = new HSSFWorkbook(); //create a entry of DocumentSummaryInformation DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation(); dsi.Company = "NPOI Team"; hssfworkbook.DocumentSummaryInformation = dsi; //create a entry of SummaryInformation SummaryInformation si = PropertySetFactory.CreateSummaryInformation(); si.Subject = "NPOI SDK Example"; hssfworkbook.SummaryInformation = si; } }}