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代码:
1 public static void dropDownList(string[] datas, string filePath) 2 { 3 HSSFWorkbook workbook = new HSSFWorkbook(); 4 ISheet sheet = workbook.CreateSheet("下拉列表测试"); 5 ISheet hidden = workbook.CreateSheet("hidden"); 6 //数据源sheet页不显示 7 workbook.SetSheetHidden(workbook.GetSheetIndex(hidden), true); 8 ICellStyle style = workbook.CreateCellStyle(); 9 style.DataFormat = HSSFDataFormat.GetBuiltinFormat("0"); 10 style.Alignment = HorizontalAlignment.Center; 11 style.VerticalAlignment = VerticalAlignment.Center; 12 IRow row = null; 13 ICell cell = null; 14 for (int i = 0; i < datas.Length; i++) 15 { 16 row = hidden.CreateRow(i); 17 cell = row.CreateCell(0); 18 cell.SetCellValue(datas[i]); 19 } 20 IName namedCell = workbook.CreateName(); 21 namedCell.NameName = "hidden"; 22 namedCell.RefersToFormula = "hidden!A$1:A$" + datas.Length; 23 HSSFDataValidationHelper dvHelper = new HSSFDataValidationHelper(sheet as HSSFSheet); 24 IDataValidationConstraint dvConstraint = (IDataValidationConstraint)dvHelper.CreateFormulaListConstraint("hidden"); 25 CellRangeAddressList addressList = null; 26 HSSFDataValidation validation = null; 27 for (int i = 0; i < datas.Length; i++) 28 { 29 row = sheet.CreateRow(i); 30 cell = row.CreateCell(0); 31 cell.CellStyle = style; 32 addressList = new CellRangeAddressList(i, i, 0, 0); 33 validation = (HSSFDataValidation)dvHelper.CreateValidation(dvConstraint, addressList); 34 sheet.AddValidationData(validation); 35 } 36 37 FileStream stream = new FileStream(filePath, FileMode.OpenOrCreate); 38 workbook.Write(stream); 39 stream.Close(); 40 }
调用:
1 static void Main(string[] args) 2 { 3 int max = 100; 4 string[] datas = new string[max]; 5 for (int i = 0; i < max; i++) 6 { 7 datas[i] = "" + i; 8 } 9 10 string filePath = @"F:\\test.xls"; 11 dropDownList(datas, filePath); 12 13 Console.Read(); 14 }
Npoi 解决下拉列表 String literals in formulas can't be bigger than 255 Chars ASCII
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原文地址：http://www.cnblogs.com/LenMiao/p/5673146.html
