转自http://martinyang2010.bokee.com/2598999.html
using System;
using System.Data;
using System.Drawing;
using System.Data.SqlClient;
using Excel;
using Word;
using System.IO;
namespace Common
{
 /// <summary>
 /// 把数据导入到.doc、.txt、.xls文件中
 /// </summary>
 public class Export
 {
  private const string DATAWORDPATH = @"C:\folder\doc\datadoc\";
  private const string IMAGEWORDPATH = @"C:\folder\doc\imagedoc\";
  private const string IMAGEPATH = @"C:\folder\image\";
  private const string EXCELPATH = @"C:\folder\excel\";
  private const string TXTPATH = @"C:\folder\txt\";
  private const string IMAGEPOSTFIX = ".bmp";
  private const string WORDPOSTFIX = ".doc";
  private const string EXCELPOSTFIX = ".xls";
  private const string TXTPOSTFIX = ".txt";
  private const int DATADISTANCE = 5;
  private const int TABDISTANCE = 8;
 
  public Export()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //
  }

  /// <summary>
  /// 获得数据集Dataset--------------------------------用于调试
  /// </summary>
  /// <returns>Dataset</returns>
  public DataSet GetData()
  {
   try
   {
    string sConnectionString;
    sConnectionString = "workstation id=GUOFU;packet size=4096;user id=sa;data source=GUOFU;persist security info=True;initial catalog=YC;password=sc";
    SqlConnection objConn = new SqlConnection(sConnectionString);
    objConn.Open();                                           
    SqlDataAdapter daPoint = new SqlDataAdapter("Select * From Point", objConn);
    DataSet dsYC = new DataSet("YC");
    daPoint.FillSchema(dsYC,SchemaType.Mapped, "Point");
    daPoint.Fill(dsYC,"Point");
    daPoint = new SqlDataAdapter("Select * From Employee", objConn);
    daPoint.FillSchema(dsYC,SchemaType.Mapped, "Employee");
    daPoint.Fill(dsYC,"Employee");
    return dsYC;
   }
   catch(Exception ex)
   {
    throw new Exception(ex.Message);
   }

  }