Home Database Mysql Tutorial c#-C#的datagridview控件数据源链接mysql失败的问题,谢谢。

c#-C#的datagridview控件数据源链接mysql失败的问题,谢谢。

Jun 06, 2016 am 09:44 AM

mysqlc#

直接上代码:

1

<code>using MySQLDriverCS;     private void button1_Click(object sender, EventArgs e)        {           string conn, query = null;            DataSet myds;            //conn = "Data Source=localhost;User Id=root;Password=123456;Database=test";            //conn = "server=localhost;uid=root;pwd=123456;database=test";            query = "select * from test1";            MySQLConnection sqlconn = new MySQLConnection(conn);            MySQLDataAdapter adapter = new MySQLDataAdapter();            sqlconn.Open();            adapter.SelectCommand = new MySQLCommand(query, sqlconn);            myds = new DataSet();            adapter.Fill(myds, "test1");            bindingSource1.DataSource = myds.Tables["test1"];            dataGridView1.DataSource = bindingSource1;            sqlconn.Close();        }</code>

Copy after login

其中注释掉的两行conn是我参照网上写的两种连接信息,但都不对
尝试第一行conn报错: MySQLDriverCS Exception: MySQLDriverCS Error: can't connect.Unknown database 'localhost'

尝试第二行conn报错: MySQLDriverCS Exception: MySQLDriverCS Error: can't connect.Access denied for user 'ODBC'@'localhost' (using password: NO)

我的mysql中test数据库test1表都没问题,使用mysql命令行可以正常浏览。

基本上把网上能找到的链接mysql数据源的方法都试过了,都失败了,各位大神看一下,到底是连接信息错误还是我整个方法都有问题,如果有应该怎么修改?谢谢。

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