59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using NPOI;
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using NPOI.HPSF;
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using NPOI.HSSF;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.POIFS;
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using NPOI.Util;
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using System.IO;
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using System.Data;
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using System.Threading.Tasks;
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namespace JY.Infrastructure.Common
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{
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class ExportXls
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{
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/// <summary>
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/// 由DataTable导出Excel
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/// </summary>
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/// <param name="sourceTable">要导出数据的DataTable</param>
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/// <returns>Excel工作表</returns>
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public void ExportDataTableToExcel(DataTable sourceTable, string sheetName, string filepath)
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{
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FileStream file = new FileStream(filepath, FileMode.Create);
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HSSFWorkbook workbook = new HSSFWorkbook();
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// MemoryStream ms = new MemoryStream();
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ISheet sheet = workbook.CreateSheet(sheetName);
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IRow headerRow = sheet.CreateRow(0);
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// handling header.
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foreach (DataColumn column in sourceTable.Columns)
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headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
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// handling value.
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int rowIndex = 1;
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foreach (DataRow row in sourceTable.Rows)
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{
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IRow dataRow = sheet.CreateRow(rowIndex);
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foreach (DataColumn column in sourceTable.Columns)
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{
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dataRow.CreateCell(column.Ordinal).SetCellValue(row[column].ToString());
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}
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rowIndex++;
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}
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workbook.Write(file);
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file.Close();
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sheet = null;
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headerRow = null;
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workbook = null;
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}
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}
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}
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