C# datagridview 连接服务器oracle数据库

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Data.OracleClient;using System.Data.SqlClient;name

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Data.OracleClient;using System.Data.SqlClient;namespace TEST{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            //string connstring = "Data Source=ouc131;user=ouc;password=letu;";//如果本地有oracle客户端的话，用这种连接            string connstring = "User Id=ouc;Password=letu;Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=222.195.*.*)(PORT=1523))(CONNECT_DATA=(SID=ouc)));Unicode=True;";            OracleConnection conn = new OracleConnection(connstring);            try            {                conn.Open();                OracleDataAdapter AdapterSelect = new OracleDataAdapter("select * from text", conn);                DataTable dt = new DataTable();                AdapterSelect.Fill(dt);                dataGridView1.DataSource = dt.DefaultView;                            }            catch (Exception ee)            {                MessageBox.Show(ee.Message);            }            finally            {                conn.Close();            }        }    }}

1.到oracle官网下载oracle client instant（http://www.oracle.com/techn来2源gaodaima#com搞(代@码&网etwork/topics/winsoft-085727.html）解压后的dll来复制到你的exe文件夹中.(instantclient-basic-nt-11.2.0.2.0.zip 支持多国语言, instantclient-basiclite-nt-11.2.0.2.0.zip 只支持英文, 高版本的oracle client可连结低版本的oracle)

(或者如果你本机安装个oracle客户端, 可以在oracle客户端文件夹搜索下*oci*.dll(oci是oracle call interface)文件, 搜索的全部dll复制到你的exe文件夹中, 网上常的复制dll就是这几个dll吧)

2.连结字符串要写成(可以写到配置文件中的, 就是要写直实的地址, 端口,实例,用户名,密码)

<span>private</span> <span>static</span> <span>string</span> CONNECTION_STRING =<span>"</span><span>User Id=myUserID;Password=myPassword;Data Source=(DESCRIPTION="</span> +<span>"</span><span>(ADDRESS=(PROTOCOL=TCP)(HOST=myserver.server.com)(PORT=yourPort#))"</span> +<span>"</span><span>(CONNECT_DATA=(SID=yourSID)));"</span>;

这样就不用去读取安装客户端的tnsnames.ora中配置了

注意: 在编程, 要把刚上面的dll放到你的debug或release目录下, 就是与exe文件同目录, 不然找不到文件, 各种出错.

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