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628 lines
25 KiB
628 lines
25 KiB
using NPOI.HPSF;
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using NPOI.HSSF.UserModel;
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using NPOI.SS.UserModel;
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using NPOI.SS.Util;
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using NPOI.XSSF.UserModel;
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using System;
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using System.Data;
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using System.IO;
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using System.Text;
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namespace Znyc.Cloudcar.Admin.Commons.Helpers
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{
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/// <summary>
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/// office 导入导出
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/// </summary>
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public class NPOIHelper
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{
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/// <summary>
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/// DataTable 导出到 Excel 的 MemoryStream
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/// </summary>
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/// <param name="dtSource">源 DataTable</param>
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/// <param name="strHeaderText">表头文本 空值未不要表头标题</param>
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/// <returns></returns>
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public static MemoryStream ExportExcel(DataTable dtSource, string strHeaderText)
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{
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HSSFWorkbook workbook = new HSSFWorkbook();
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ISheet sheet = workbook.CreateSheet();
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#region 文件属性
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DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
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dsi.Company = "Znyc.Cloudcar.Admin.com";
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workbook.DocumentSummaryInformation = dsi;
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SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
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si.Author = "Znyc.Cloudcar.Admin.com";
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si.ApplicationName = "Znyc.Cloudcar.Admin.com";
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si.LastAuthor = "Znyc.Cloudcar.Admin.com";
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si.Comments = "";
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si.Title = "";
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si.Subject = "";
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si.CreateDateTime = DateTime.Now;
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workbook.SummaryInformation = si;
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#endregion 文件属性
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ICellStyle dateStyle = workbook.CreateCellStyle();
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IDataFormat format = workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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int[] arrColWidth = new int[dtSource.Columns.Count];
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foreach (DataColumn item in dtSource.Columns)
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{
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arrColWidth[item.Ordinal] = Encoding.GetEncoding("gb2312").GetBytes(item.ColumnName).Length;
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}
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for (int i = 0; i < dtSource.Rows.Count; i++)
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{
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for (int j = 0; j < dtSource.Columns.Count; j++)
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{
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int intTemp = Encoding.GetEncoding("gb2312").GetBytes(dtSource.Rows[i][j].ToString()).Length;
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if (intTemp > arrColWidth[j])
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{
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arrColWidth[j] = intTemp;
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}
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}
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}
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int rowIndex = 0;
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int intTop = 0;
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foreach (DataRow row in dtSource.Rows)
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{
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#region 新建表、填充表头、填充列头，样式
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if (rowIndex == 65535 || rowIndex == 0)
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{
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if (rowIndex != 0)
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{
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sheet = workbook.CreateSheet();
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}
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intTop = 0;
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#region 表头及样式
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{
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if (strHeaderText.Length > 0)
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{
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IRow headerRow = sheet.CreateRow(intTop);
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intTop += 1;
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headerRow.HeightInPoints = 25;
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headerRow.CreateCell(0).SetCellValue(strHeaderText);
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ICellStyle headStyle = workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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IFont font = workbook.CreateFont();
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font.FontHeightInPoints = 20;
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font.Boldweight = 700;
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headStyle.SetFont(font);
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headerRow.GetCell(0).CellStyle = headStyle;
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sheet.AddMergedRegion(
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new CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
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}
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}
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#endregion 表头及样式
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#region 列头及样式
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{
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IRow headerRow = sheet.CreateRow(intTop);
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intTop += 1;
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ICellStyle headStyle = workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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IFont font = workbook.CreateFont();
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font.Boldweight = 700;
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headStyle.SetFont(font);
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foreach (DataColumn column in dtSource.Columns)
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{
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headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
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headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
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//设置列宽
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sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
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}
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}
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#endregion 列头及样式
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rowIndex = intTop;
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}
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#endregion 新建表、填充表头、填充列头，样式
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#region 填充内容
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IRow dataRow = sheet.CreateRow(rowIndex);
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foreach (DataColumn column in dtSource.Columns)
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{
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ICell newCell = dataRow.CreateCell(column.Ordinal);
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string drValue = row[column].ToString();
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switch (column.DataType.ToString())
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{
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case "System.String": //字符串类型
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newCell.SetCellValue(drValue);
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break;
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case "System.DateTime": //日期类型
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DateTime dateV;
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DateTime.TryParse(drValue, out dateV);
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newCell.SetCellValue(dateV);
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newCell.CellStyle = dateStyle; //格式化显示
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break;
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case "System.Boolean": //布尔型
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bool boolV = false;
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bool.TryParse(drValue, out boolV);
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newCell.SetCellValue(boolV);
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break;
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case "System.Int16":
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case "System.Int32":
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case "System.Int64":
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case "System.Byte":
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int intV = 0;
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int.TryParse(drValue, out intV);
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newCell.SetCellValue(intV);
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break;
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case "System.Decimal":
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case "System.Double":
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double doubV = 0;
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double.TryParse(drValue, out doubV);
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newCell.SetCellValue(doubV);
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break;
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case "System.DBNull": //空值处理
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newCell.SetCellValue("");
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break;
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default:
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newCell.SetCellValue("");
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break;
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}
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}
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#endregion 填充内容
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rowIndex++;
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}
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using (MemoryStream ms = new MemoryStream())
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{
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workbook.Write(ms);
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ms.Flush();
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ms.Position = 0;
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return ms;
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}
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}
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/// <summary>
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/// DaataTable 导出到 Excel 文件
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/// </summary>
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/// <param name="dtSource">源 DataaTable</param>
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/// <param name="strHeaderText">表头文本</param>
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/// <param name="strFileName">保存位置(文件名及路径)</param>
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public static void ExportExcel(DataTable dtSource, string strHeaderText, string strFileName)
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{
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using (MemoryStream ms = ExportExcel(dtSource, strHeaderText))
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{
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using (FileStream fs = new FileStream(strFileName, FileMode.Create, FileAccess.Write))
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{
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byte[] data = ms.ToArray();
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fs.Write(data, 0, data.Length);
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fs.Flush();
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}
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}
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}
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/// <summary>
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/// 读取 excel
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/// 默认第一行为标头
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/// </summary>
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/// <param name="strFileName">excel 文档路径</param>
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/// <returns></returns>
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public static DataTable ImportExcel(string strFileName)
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{
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DataTable dt = new DataTable();
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HSSFWorkbook hssfworkbook;
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using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
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{
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hssfworkbook = new HSSFWorkbook(file);
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}
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ISheet sheet = hssfworkbook.GetSheetAt(0);
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System.Collections.IEnumerator rows = sheet.GetRowEnumerator();
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IRow headerRow = sheet.GetRow(0);
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int cellCount = headerRow.LastCellNum;
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for (int j = 0; j < cellCount; j++)
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{
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ICell cell = headerRow.GetCell(j);
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dt.Columns.Add(cell.ToString());
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}
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for (int i = sheet.FirstRowNum + 1; i <= sheet.LastRowNum; i++)
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{
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IRow row = sheet.GetRow(i);
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if (row.GetCell(row.FirstCellNum) != null && row.GetCell(row.FirstCellNum).ToString().Length > 0)
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{
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DataRow dataRow = dt.NewRow();
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for (int j = row.FirstCellNum; j < cellCount; j++)
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{
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if (row.GetCell(j) != null)
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{
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dataRow[j] = row.GetCell(j).ToString();
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}
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}
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dt.Rows.Add(dataRow);
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}
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}
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return dt;
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}
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/// <summary>
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/// DataSet 导出到 Excel 的 MemoryStream
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/// </summary>
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/// <param name="dsSource">源 DataSet</param>
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/// <param name="strHeaderText">表头文本 空值未不要表头标题(多个表对应多个表头以英文逗号(,)分开，个数应与表相同)</param>
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/// <returns></returns>
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public static MemoryStream ExportExcel(DataSet dsSource, string strHeaderText)
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{
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HSSFWorkbook workbook = new HSSFWorkbook();
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#region 文件属性
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DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
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dsi.Company = "Znyc.Cloudcar.Admin.com";
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workbook.DocumentSummaryInformation = dsi;
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SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
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si.Author = "Znyc.Cloudcar.Admin.com";
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si.ApplicationName = "Znyc.Cloudcar.Admin.com";
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si.LastAuthor = "Znyc.Cloudcar.Admin.com";
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si.Comments = "";
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si.Title = "";
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si.Subject = "";
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si.CreateDateTime = DateTime.Now;
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workbook.SummaryInformation = si;
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#endregion 文件属性
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#region 注释
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//ICellStyle dateStyle = workbook.CreateCellStyle();
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//IDataFormat format = workbook.CreateDataFormat();
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//dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
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//ISheet sheet = workbook.CreateSheet();
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//int[] arrColWidth = new int[dtSource.Columns.Count];
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//foreach (DataColumn item in dtSource.Columns)
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//{
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// arrColWidth[item.Ordinal] = Encoding.GetEncoding("gb2312").GetBytes(item.ColumnName.ToString()).Length;
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//}
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//for (int i = 0; i < dtSource.Rows.Count; i++)
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//{
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// for (int j = 0; j < dtSource.Columns.Count; j++)
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// {
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// int intTemp = Encoding.GetEncoding("gb2312").GetBytes(dtSource.Rows[i][j].ToString()).Length;
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// if (intTemp > arrColWidth[j])
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// {
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// arrColWidth[j] = intTemp;
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// }
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// }
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//}
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//int rowIndex = 0;
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//int intTop = 0;
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//foreach (DataRow row in dtSource.Rows)
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//{
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// #region 新建表、填充表头、填充列头，样式
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// if (rowIndex == 65535 || rowIndex == 0)
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// {
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// if (rowIndex != 0)
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// {
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// sheet = workbook.CreateSheet();
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// }
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// intTop = 0;
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// #region 表头及样式
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// {
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// if (strHeaderText.Length > 0)
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// {
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// IRow headerRow = sheet.CreateRow(intTop);
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// intTop += 1;
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// headerRow.HeightInPoints = 25;
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// headerRow.CreateCell(0).SetCellValue(strHeaderText);
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// ICellStyle headStyle = workbook.CreateCellStyle();
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// headStyle.Alignment = HorizontalAlignment.CENTER;
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// IFont font = workbook.CreateFont();
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// font.FontHeightInPoints = 20;
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// font.Boldweight = 700;
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// headStyle.SetFont(font);
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// headerRow.GetCell(0).CellStyle = headStyle;
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// sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
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// }
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// }
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// #endregion
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// #region 列头及样式
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// {
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// IRow headerRow = sheet.CreateRow(intTop);
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// intTop += 1;
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// ICellStyle headStyle = workbook.CreateCellStyle();
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// headStyle.Alignment = HorizontalAlignment.CENTER;
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// IFont font = workbook.CreateFont();
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// font.Boldweight = 700;
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// headStyle.SetFont(font);
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// foreach (DataColumn column in dtSource.Columns)
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// {
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// headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
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// headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
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// //设置列宽
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// sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
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// }
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// }
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// #endregion
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// rowIndex = intTop;
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// }
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// #endregion
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// #region 填充内容
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// IRow dataRow = sheet.CreateRow(rowIndex);
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// foreach (DataColumn column in dtSource.Columns)
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// {
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// ICell newCell = dataRow.CreateCell(column.Ordinal);
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// string drValue = row[column].ToString();
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// switch (column.DataType.ToString())
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// {
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// case "System.String"://字符串类型
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// newCell.SetCellValue(drValue);
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// break;
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// case "System.DateTime"://日期类型
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// DateTime dateV;
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// DateTime.TryParse(drValue, out dateV);
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// newCell.SetCellValue(dateV);
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// newCell.CellStyle = dateStyle;//格式化显示
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// break;
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// case "System.Boolean"://布尔型
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// bool boolV = false;
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// bool.TryParse(drValue, out boolV);
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// newCell.SetCellValue(boolV);
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// break;
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// case "System.Int16":
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// case "System.Int32":
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// case "System.Int64":
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// case "System.Byte":
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// int intV = 0;
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// int.TryParse(drValue, out intV);
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// newCell.SetCellValue(intV);
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// break;
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// case "System.Decimal":
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// case "System.Double":
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// double doubV = 0;
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// double.TryParse(drValue, out doubV);
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// newCell.SetCellValue(doubV);
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// break;
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// case "System.DBNull"://空值处理
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// newCell.SetCellValue("");
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// break;
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// default:
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// newCell.SetCellValue("");
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// break;
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// }
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// }
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// #endregion
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// rowIndex++;
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//}
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#endregion 注释
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string[] strNewText = strHeaderText.Split(Convert.ToChar(","));
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if (dsSource.Tables.Count == strNewText.Length)
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{
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for (int i = 0; i < dsSource.Tables.Count; i++)
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{
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ExportFromDSExcel(workbook, dsSource.Tables[i], strNewText[i]);
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}
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}
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using (MemoryStream ms = new MemoryStream())
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{
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workbook.Write(ms);
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ms.Flush();
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ms.Position = 0;
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return ms;
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}
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}
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/// <summary>
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/// DataTable 导出到 Excel 的 MemoryStream
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/// </summary>
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/// <param name="workbook">源 workbook</param>
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/// <param name="dtSource">源 DataTable</param>
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/// <param name="strHeaderText">表头文本 空值未不要表头标题(多个表对应多个表头以英文逗号(,)分开，个数应与表相同)</param>
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/// <returns></returns>
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public static void ExportFromDSExcel(HSSFWorkbook workbook, DataTable dtSource, string strHeaderText)
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{
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ICellStyle dateStyle = workbook.CreateCellStyle();
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IDataFormat format = workbook.CreateDataFormat();
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dateStyle.DataFormat = format.GetFormat("yyyy-MM-dd HH:mm:ss");
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ISheet sheet = workbook.CreateSheet(strHeaderText);
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int[] arrColWidth = new int[dtSource.Columns.Count];
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foreach (DataColumn item in dtSource.Columns)
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{
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arrColWidth[item.Ordinal] = Encoding.GetEncoding("gb2312").GetBytes(item.ColumnName).Length;
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}
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for (int i = 0; i < dtSource.Rows.Count; i++)
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{
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for (int j = 0; j < dtSource.Columns.Count; j++)
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{
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int intTemp = Encoding.GetEncoding("gb2312").GetBytes(dtSource.Rows[i][j].ToString()).Length;
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if (intTemp > arrColWidth[j])
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{
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arrColWidth[j] = intTemp;
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}
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}
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}
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int rowIndex = 0;
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int intTop = 0;
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foreach (DataRow row in dtSource.Rows)
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{
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#region 新建表、填充表头、填充列头，样式
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if (rowIndex == 65535 || rowIndex == 0)
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{
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if (rowIndex != 0)
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{
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sheet = workbook.CreateSheet();
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}
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intTop = 0;
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#region 表头及样式
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{
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if (strHeaderText.Length > 0)
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{
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IRow headerRow = sheet.CreateRow(intTop);
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intTop += 1;
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headerRow.HeightInPoints = 25;
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headerRow.CreateCell(0).SetCellValue(strHeaderText);
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ICellStyle headStyle = workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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IFont font = workbook.CreateFont();
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font.FontHeightInPoints = 20;
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font.Boldweight = 700;
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headStyle.SetFont(font);
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headerRow.GetCell(0).CellStyle = headStyle;
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sheet.AddMergedRegion(
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new CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
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}
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}
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#endregion 表头及样式
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#region 列头及样式
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{
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IRow headerRow = sheet.CreateRow(intTop);
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intTop += 1;
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ICellStyle headStyle = workbook.CreateCellStyle();
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headStyle.Alignment = HorizontalAlignment.Center;
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IFont font = workbook.CreateFont();
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font.Boldweight = 700;
|
|
headStyle.SetFont(font);
|
|
foreach (DataColumn column in dtSource.Columns)
|
|
{
|
|
headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
|
|
headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
|
|
//设置列宽
|
|
// sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); // 设置设置列宽 太长会报错 修改2014 年9月22日
|
|
int dd = (arrColWidth[column.Ordinal] + 1) * 256;
|
|
|
|
if (dd > 200 * 256)
|
|
{
|
|
dd = 100 * 256;
|
|
}
|
|
|
|
sheet.SetColumnWidth(column.Ordinal, dd);
|
|
}
|
|
}
|
|
|
|
#endregion 列头及样式
|
|
|
|
rowIndex = intTop;
|
|
}
|
|
|
|
#endregion 新建表、填充表头、填充列头，样式
|
|
|
|
#region 填充内容
|
|
|
|
IRow dataRow = sheet.CreateRow(rowIndex);
|
|
foreach (DataColumn column in dtSource.Columns)
|
|
{
|
|
ICell newCell = dataRow.CreateCell(column.Ordinal);
|
|
string drValue = row[column].ToString();
|
|
switch (column.DataType.ToString())
|
|
{
|
|
case "System.String": //字符串类型
|
|
newCell.SetCellValue(drValue);
|
|
break;
|
|
|
|
case "System.DateTime": //日期类型
|
|
if (drValue.Length > 0)
|
|
{
|
|
DateTime.TryParse(drValue, out DateTime dateV);
|
|
newCell.SetCellValue(dateV);
|
|
newCell.CellStyle = dateStyle; //格式化显示
|
|
}
|
|
else
|
|
{
|
|
newCell.SetCellValue(drValue);
|
|
}
|
|
|
|
break;
|
|
|
|
case "System.Boolean": //布尔型
|
|
bool boolV = false;
|
|
bool.TryParse(drValue, out boolV);
|
|
newCell.SetCellValue(boolV);
|
|
break;
|
|
|
|
case "System.Int16":
|
|
case "System.Int32":
|
|
case "System.Int64":
|
|
case "System.Byte":
|
|
int intV = 0;
|
|
int.TryParse(drValue, out intV);
|
|
newCell.SetCellValue(intV);
|
|
break;
|
|
|
|
case "System.Decimal":
|
|
case "System.Double":
|
|
double doubV = 0;
|
|
double.TryParse(drValue, out doubV);
|
|
newCell.SetCellValue(doubV);
|
|
break;
|
|
|
|
case "System.DBNull": //空值处理
|
|
newCell.SetCellValue("");
|
|
break;
|
|
|
|
default:
|
|
newCell.SetCellValue("");
|
|
break;
|
|
}
|
|
}
|
|
|
|
#endregion 填充内容
|
|
|
|
rowIndex++;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 按指定长度创建列并带入样式
|
|
/// </summary>
|
|
/// <param name="hssfrow"></param>
|
|
/// <param name="len"></param>
|
|
/// <param name="cellstyle"></param>
|
|
/// <returns></returns>
|
|
public static bool CreateCellsWithLength(XSSFRow hssfrow, int len, XSSFCellStyle cellstyle)
|
|
{
|
|
try
|
|
{
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
hssfrow.CreateCell(i);
|
|
hssfrow.Cells[i].CellStyle = cellstyle;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
catch (Exception ce)
|
|
{
|
|
throw new Exception("CreateCellsWithLength:" + ce.Message);
|
|
}
|
|
}
|
|
}
|
|
}
|