Question

我正在使用Visual Studio 2010，当我将DataGridView与我的远程mysql数据库绑定时，正常运行。
但是当我从向导中获取连接字符串并尝试将其与代码一起使用时，我得到：“提供者：命名管道提供程序，错误：40 - 无法打开与SQL Server的连接”

这是我尝试的连接字符串（我试过很多变种）：
的 “服务器= myserver.org;数据库= MY_DB; UID =为myuser; PWD = MYPWD;”

任何想法？
感谢

这是代码：
string connectionString = "Server = sql.server.org; Database = my_db; Uid = my_user; Pwd = mypwd;";

        SqlConnection myConnection = new SqlConnection(connectionString);
        SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter("Select * from Table", myConnection);
        DataSet myDataSet = new DataSet();
        DataRow myDataRow;

        // Create command builder. This line automatically generates the update commands for you, so you don't 
        // have to provide or create your own.
        SqlCommandBuilder mySqlCommandBuilder = new SqlCommandBuilder(mySqlDataAdapter);

        // Set the MissingSchemaAction property to AddWithKey because Fill will not cause primary
        // key & unique key information to be retrieved unless AddWithKey is specified.
        mySqlDataAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;

        mySqlDataAdapter.Fill(myDataSet, "Table");

Answer 1

已解决：显然 SqlConnection 不适用于MySQL

使用： MySqlConnection 而不是

Answer 2

           string connectionString = "server=localhost;uid=root;pwd=***********;database=terra_incognita_online";
           MySqlConnection sqlConnection = new MySqlConnection();
           sqlConnection.ConnectionString = connectionString;
           sqlConnection.Open();
           Console.WriteLine("open");
           sqlConnection.Close();
           Console.WriteLine("close");

使用C＃连接到远程MySQL的问题

2 个答案: