C#连接MariaDB

下载最新的MariaDB,数据库工具用Mysql workbench，heidisql，两个可以结合起来用。
在NuGet中下载MySQLConnector 或者自己手动下载添加。
最新的下载地址是：https://dev.mysql.com/downloads/connector/net/
下面是连接方法，必须加入sslmode = none;否则会报错！
            string  connectstr="server=localhost;port=3306;database=test;user=root;password=;SslMode = none;";
            MySqlConnection  conn=new MySqlConnection(connectstr);

            try {
                conn.Open();
                Console.WriteLine("连接成功!!!");
            } catch (Exception e) {

                Console.WriteLine(e.ToString());
            }finally{
               conn.Close();
               Console.WriteLine("正常关闭!!!");
            }
读取数据库内容
 
                string  sql =  "SELECT * FROM MyTable" ;
            MySqlDataAdapter adapter =  new  MySqlDataAdapter(sql, connection_);
            DataTable dataTable =  new  DataTable();
            adapter.Fill(dataTable);
            dataGridViewMariaDB.DataSource = dataTable; 
     
     
     
    插入数据
 
                int  id = DateTime.Now.Second;
            string  username = DateTime.Now.ToShortDateString();
            string  password = Guid.NewGuid().ToString();
            string  sql =  string .Format( "INSERT INTO MyTable (`id`,`username`,`password`) VALUES({0},'{1}','{2}');" , id, username, password);
            MySqlCommand command =  new  MySqlCommand(sql, connection_);
            int  affectLines = command.ExecuteNonQuery();