C#实现将数据导出为Excel：Print Excel功能详解

SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["conn"]); 
SqlDataAdapter da=new SqlDataAdapter("select * from tb1",conn); 
DataSet ds=new DataSet(); 
da.Fill(ds,"table1"); 
DataTable dt=ds.Tables["table1"]; 
string name=System.Configuration.ConfigurationSettings.AppSettings["downloadurl"].ToString()+DateTime.Today.ToString("yyyyMMdd")+new Random(DateTime.Now.Millisecond).Next(10000).ToString()+".csv";//存放到web.config中downloadurl指定的路径，文件格式为当前日期+4位随机数 
FileStream fs=new FileStream(name,FileMode.Create,FileAccess.Write); 
StreamWriter sw=new StreamWriter(fs,System.Text.Encoding.GetEncoding("gb2312")); 
sw.WriteLine("自动编号,姓名,年龄"); 
foreach(DataRow dr in dt.Rows) 
{ 
sw.WriteLine(dr["ID"]+","+dr["vName"]+","+dr["iAge"]); 
} 
sw.Close(); 
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(name)); 
Response.ContentType = "application/ms-excel";// 指定返回的是一个不能被客户端读取的流，必须被下载 
Response.WriteFile(name); // 把文件流发送到客户端 
Response.End(); 
public void Out2Excel(string sTableName,string url) 
{ 
Excel.Application oExcel=new Excel.Application(); 
Workbooks oBooks; 
Workbook oBook; 
Sheets oSheets; 
Worksheet oSheet; 
Range oCells; 
string sFile="",sTemplate=""; 
// 
System.Data.DataTable dt=TableOut(sTableName).Tables[0];