使用oracle批量复制获取错误

Question

using System.Data;   
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Data.OleDb;
using System.Data.Odbc;
using System.Data.OracleClient;
//using System.OracleBulkCopy;


public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
    if (FileUpload1.HasFile)
    {
       // try
        {
            string path = string.Concat(("c:\\" + FileUpload1.FileName));
           FileUpload1.SaveAs(path);




            string excelConnectionString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=Excel 8.0", path);
            OleDbConnection connection = new OleDbConnection();
            connection.ConnectionString = excelConnectionString;
            OleDbCommand command = new OleDbCommand("select * from [Sheet1$]", connection);
            connection.Open();

            DbDataReader dr = command.ExecuteReader();


             OracleConnection con = new OracleConnection (@"Data Source=test1;User ID=TEST;Password=RAM");


             OracelBulkCopy bulkInsert = new OracelBulkCopy(con);
            bulkInsert.DestinationTableName = "emp1";
            bulkInsert.WriteToServer(dr);
             Label1.Text = "task over";
        }
       //  catch(Exception ex)
        {
        // Label1.Text = ex.Message; 

    }
}

}
}  

收到错误错误

  

1找不到类型或命名空间名称'OracelBulkCopy'（您是否缺少using指令或程序集引用？）

帮我解决这个问题。 提前谢谢