求助Asp.net(基于c#)连接局域网内oracle数据库问题

在客户端得sqlplus能连上!
但是用asp.net连不上
using System.Data.OracleClient;
OracleConnection OraConn = new OracleConnection("data source=(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.13)(PORT = 1521)))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)) );user id=txp;password=txp");

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串串为什么写得那么麻烦??/直接source=实例名;user id=txp;password=txp不就可以了?

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貌似很乱，oracle的链接字符串应该
XML code:
Provider=msdaora;Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;

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connectionString="Data Source=orcl;Persist Security Info=True;User ID=txp;Password=txp;Unicode=True"

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不是本机的oracle，是局域网内的

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貌似不支持关键字: “provider”。

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和lz一样的 我是连得局域网内服务器的：
Data Source=TESTORCL;Persist Security Info=True;User ID=liuwanlin;Password=520lwl;Unicode=True

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引用

貌似不支持关键字: “provider”。

怎么会？

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错误提示

Server Error in '/' Application.
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Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the