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using Microsoft.Office.Interop.Excel;
针对office 2003需添加引用Microsoft Excel 11.0 Object Library
如添加之后还不能用再using microsoft.office.core和excel
引用的dll为
Interop.Microsoft.Office.Core.dll
Interop.Excel.dll
Excel导出类:
using System;using System.IO;using System.Data;using Microsoft.Office.Interop.Excel; /// <summary> /// 导出Excal文件 /// </summary> public class ImportExcel{ private string title; private string rpt_name; private string outFilePath; private System.Data.DataTable dt; private System.Data.DataTable outTable; public ImportExcel() { } /// <summary> /// 设置Excel标题 /// </summary> public string rptName { get { return title; } set { title = value; } } /// <summary> /// 需要导入EXCEL的表 /// </summary> public System.Data.DataTable RptData { get { return dt; } set { dt = value; } } /// <summary> /// 设置输出文件的存放位置 /// </summary> public string OutFilePath { get { return outFilePath; } set { outFilePath = value; } } /// <summary> /// 构造函数,使用该类需传入Excel标题,DataTable,文件的存放路径 /// </summary> /// <param name="rptName">要设置的Excel标题</param> /// <param name="dtable">要填充Excel的表</param> /// <param name="FilePath">要存放的路径</param> public ImportExcel(string rptName, System.Data.DataTable dtable, string file_path) { rpt_name = rptName; outTable = dtable; outFilePath = file_path; try { this.InsertExcel(); } catch (Exception e) { throw new Exception(e.Message); } } /// <summary> /// 该函数向Excel表中插入记录,要插入的数据为一个内存表.其中内存表中的列名为表中的列名 /// 该函数所使用的动态连接库Excel.dll,Office.dll,VBIDE.dll. /// </summary> public void InsertExcel() { int col_count = 0; int row_count = 0; int k = 0; int l = 0; //检查文件是否存在 if (File.Exists(outFilePath)) { throw new Exception("文件已存在，创建失败！"); } Microsoft.Office.Interop.Excel.ApplicationClass rptApp = new Microsoft.Office.Interop.Excel.ApplicationClass(); rptApp.Application.Workbooks.Add(true); rptApp.Visible = false; object missing = System.Reflection.Missing.Value; Microsoft.Office.Interop.Excel.Workbook rptBook = rptApp.Workbooks[1]; Microsoft.Office.Interop.Excel.Worksheet rptSheet = (Microsoft.Office.Interop.Excel.Worksheet)rptBook.ActiveSheet; //设置报表的标题 rptSheet.Cells[1, 1] = rpt_name; //插入列标题 foreach (DataColumn col in outTable.Columns) { col_count++; rptSheet.Cells[2, col_count] = col.ColumnName.ToString(); } //设置列标题格式 rptSheet.get_Range(rptSheet.Cells[2, 1],rptSheet.Cells[2, col_count]).Font.Bold = true; // 是否加粗：是 //设置单元格的格式 foreach (DataRow dr in outTable.Rows) { row_count++; col_count = 0; foreach (DataColumn col in outTable.Columns) { col_count++; if (col.DataType == System.Type.GetType("System.String")) { rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[row_count + 2, col_count]).NumberFormatLocal = "@"; } else if (col.DataType == System.Type.GetType("System.DateTime")) { rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[row_count + 2, col_count]).NumberFormatLocal = "yyyy-m-d"; } } } //向报表插入记录 for (int i = 0; i < outTable.Rows.Count; i++) { for (int j = 0; j < outTable.Columns.Count; j++) { k = i + 3; l = j + 1; rptSheet.Cells[k, l] = outTable.Rows[i][j].ToString(); rptSheet.get_Range(rptSheet.Cells[1, l], rptSheet.Cells[1, l]).Borders.LineStyle = 7; rptSheet.get_Range(rptSheet.Cells[2, l], rptSheet.Cells[2, l]).Borders.LineStyle = 1; rptSheet.get_Range(rptSheet.Cells[k, l], rptSheet.Cells[k, l]).Borders.LineStyle = 1; } } //设置标题的格式 rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[1, 1]).Font.Bold = true; rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[1, 1]).Font.Size = 22; //设置报表的标题为跨列居中合并单元格 rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[1, col_count]).Select(); rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[1, col_count]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenterAcrossSelection; //设置报表表格为最适应宽度 rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[row_count, col_count]).Select(); rptSheet.get_Range(rptSheet.Cells[1, 1], rptSheet.Cells[row_count, col_count]).Columns.AutoFit(); //另存文件到指定路径下 rptBook.SaveAs(outFilePath, missing, missing, missing, missing, missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, missing, missing, missing, missing, missing); //关闭文件 rptBook.Close(false, outFilePath, true); rptApp.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(rptSheet); System.Runtime.InteropServices.Marshal.ReleaseComObject(rptBook); System.Runtime.InteropServices.Marshal.ReleaseComObject(rptApp); //强制释放无用资源 GC.Collect(); }} |
解决方法一:
控制面板－》管理工具－》组件服务－》计算机－》我的电脑－》DCom配置－》找到Microsoft Excel 应用程序
之后
单击属性打开此应用程序的属性对话框。
2. 单击标识选项卡，然后选择交互式用户。
3.单击"安全"选项卡,分别在"启动和激活权限"和"访问权限"组中选中"自定义",然后
自定义->编辑->添加ASP.NET账户和IUSER_计算机名: 需要本地激活,和本地访问两个权限
4."标识"选项卡 选择交互式用户
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原文地址：http://www.cnblogs.com/xianer/p/4482213.html
