c# ExportToExcels
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Business;
using System.Runtime.InteropServices;
using System.Data.OleDb;
using Microsoft.Office.Interop.Excel;
/// <summary>
/// ExportToExcels 的摘要说明
/// </summary>
public class ExportToExcels
{
public ExportToExcels()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
/// <summary>
/// 导出到 Excel 文件
/// </summary>
/// <param name="rs">当前记录</param>
/// <param name="flds">要导出的字段</param>
/// <param name="fn">文件的路径文件名</param>
/// <param name="dcfg">词典配置工具</param>
public static void ExportToExcel(DataAccess.Record[] rs, DataAccess.Field[] flds, string fn, DictionaryConfigure dcfg)
{
Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass(); // 建立Excel对象
excel.Application.Workbooks.Add(true); // Excel表为添加状态
//for (int i = 0; i < flds.Length; i++) // 填充表头
//{
// excel.Cells[1, i + 1] = flds[i].Name;
//}
excel.Columns.EntireColumn.AutoFit();//列宽自适应。
excel.Cells[1, 1] = "2012年省级政府投资项目储备库项目申报汇总表";
Microsoft.Office.Interop.Excel.Range r;
r = excel.get_Range(excel.Cells[1, 1], excel.Cells[1, 19]); //取得合并的区域
r.MergeCells = true;
// 设置整个报表的标题格式
//excel.get_Range(excel.Cells[1, 1], excel.Cells[1, 1]).Font.Bold = true;
excel.get_Range(excel.Cells[1, 1], excel.Cells[1, 1]).Font.Size = 18;
// 设置整个报表的标题为跨列居中
excel.get_Range(excel.Cells[1, 1], excel.Cells[1, 1]).Select();
excel.get_Range(excel.Cells[1, 1], excel.Cells[1, 1]).HorizontalAlignment = XlHAlign.xlHAlignCenter;
excel = setExcel(excel, "填报单位", 2, 1, 3, 1, false, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目类别", 2, 2, 3, 2, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目名称", 2, 3, 3, 3, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "建设性质", 2, 4, 3, 4, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "建设起止年限", 2, 5, 3, 5, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "建设结束年限", 2, 6, 3, 6, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目建设单位", 2, 7, 3, 7, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "建设规模及主要内容", 2, 8, 3, 8, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "总投资（万元）", 2, 9, 3, 9, true, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "拟申请省级财政性资金", 2, 10, 2, 13, true, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "共计（万元）", 3, 10, 3, 10, false, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "申请年度", 3, 11, 3, 11, false, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "拟申请省级财政性专项资金名称", 3, 12, 3, 12, false, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "拟申请金额（万元）", 3, 13, 3, 13, false, 58, 20, XlHAlign.xlHAlignCenter);
//excel = setExcel(excel, "拟申请省级财政性资金", 2, 10, 2, 13, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "共计（万元）", 2, 10, 3, 10, false, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "申请年度", 2, 11, 3, 11, false, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "拟申请省级财政性专项资金名称", 2, 12, 3, 12, false, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "拟申请金额（万元）", 2, 13, 3, 13, false, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目审批文号", 2, 14, 3, 14, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目进展情况", 2, 15, 3, 15, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目用地情况(亩)", 2, 16, 3, 16, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "项目建设必要性", 2, 17, 3, 17, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "产业政策、城乡规划、土地利用规划符合性", 2, 18, 3, 18, true, 58, 20, XlHAlign.xlHAlignCenter);
excel = setExcel(excel, "处理状态", 2, 19, 3, 19, true, 58, 20, XlHAlign.xlHAlignCenter);
for (int i = 0; i < rs.Length; i++) // 填充数据
{
for (int j = 0; j < flds.Length; j++)
{
string txt = rs[i].getStringValue(flds[j].ID);
if (!flds[j].DictionaryID.Equals(""))
{
txt = Business.DictionaryConfigure.GetCatalogNameByDictionary(txt, dcfg.getDictionary(flds[j].DictionaryID));
}
if (flds[j].EditIsDate)
{
txt = (txt.Length > 8 ? txt.Substring(0, 8) : txt);
txt = Utility.StringUtility.Alt(txt, "????-??-??", "?");
}
excel.Cells[i + 3, j + 1] = txt;
}
}
excel.Visible = false;
excel.DisplayAlerts = false;
excel.ActiveWorkbook.SaveAs(fn, Microsoft.Office.Interop.Excel.XlFileFormat.xlExcel7, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
KillExcelProcess(excel);
}
public static Microsoft.Office.Interop.Excel.ApplicationClass setExcel(Microsoft.Office.Interop.Excel.ApplicationClass excel, string title, int xNum, int yNum, int xNum2, int yNum2,bool isMerge, int height, int width, XlHAlign xl)
{
excel.Cells[xNum, yNum] = title;
Microsoft.Office.Interop.Excel.Range r;
r = excel.get_Range(excel.Cells[xNum, yNum], excel.Cells[xNum2, yNum2]);
//r.MergeCells = true;
r.Merge(isMerge);
//r.ColumnWidth = width;
//r.RowHeight = height;
r.HorizontalAlignment = xl;
r.WrapText = true;
return excel;
}
/// <summary>
/// 获取进程标识
/// </summary>
/// <param name="hwnd">输入参数：句柄</param>
/// <param name="ID">输出参数：进程标识</param>
/// <returns></returns>
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);
/// <summary>
/// 关闭 Excel 进程
/// </summary>
/// <param name="excel"></param>
private static void KillExcelProcess(Microsoft.Office.Interop.Excel.ApplicationClass excel)
{
//------------ 方法 1 -----------------
//excel.Quit();
//excel = null;
//GC.Collect(); // 垃圾回收
//------------ 方法 2 -----------------
try
{
IntPtr handler = new IntPtr(excel.Hwnd); // 句柄
int processid = 0; // 进程标识
GetWindowThreadProcessId(handler, out processid);
System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(processid); // 进程
p.Kill(); // 杀除进程
}
catch
{
excel.Workbooks.Close();
excel.Quit();
}
//-----------------------------
}
/// <summary>
/// 从指定的Excel文件导入
/// </summary>
/// <param name="strFileName">导入文件</param>
/// <returns></returns>
public DataSet importFromExcel(string strFileName)
{
if (strFileName == "") return null;
string strConn = " Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source = " + strFileName + ";Extended Properties=Excel 8.0";
OleDbDataAdapter excelDA = new OleDbDataAdapter("select * from [Sheet1$]", strConn); // 连接字符串
DataSet ds = new DataSet(); // 建立数据集，用于存放导入Excel的数据
excelDA.Fill(ds, "ExcelInfo"); // 填充DataSet
return ds;
}
/// <summary>
/// 将记录集导出到 Excel 文件
/// </summary>
/// <param name="rs">当前记录集</param>
/// <param name="flds">要导出的字段</param>
/// <param name="fn">文件的路径文件名</param>
public static void RecordsToExcel(DataAccess.Record[] rs, DataAccess.Field[] flds, string fn)
{
Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass(); // 建立Excel对象
excel.Application.Workbooks.Add(true); // Excel表为添加状态
for (int i = 0; i < flds.Length; i++) // 填充表头
{
excel.Cells[1, i + 1] = flds[i].Name;
}
for (int i = 0; i < rs.Length; i++) // 填充数据
{
for (int j = 0; j < flds.Length; j++)
{
excel.Cells[i + 2, j + 1] = rs[i].getStringValue(flds[j].ID);
}
}
excel.Visible = false;
excel.DisplayAlerts = false;
excel.ActiveWorkbook.SaveAs(fn, Microsoft.Office.Interop.Excel.XlFileFormat.xlExcel7, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
KillExcelProcess(excel);
}
}