developing windows applications with mysql database

System.Data.Common.DbConnection sqlConnection = new MySql.Data.MySqlClient.MySqlConnection("server=localhost;user id=sqlaccess;password=sqlpass;database=testdb;");
try
{
  string sql = string.Format("UPDATE tb1 SET type='12' WHERE id=2");
  sqlConnection.Open();
  System.Data.Common.DbCommand sqlCommand = sqlConnection.CreateCommand();
  sqlCommand.CommandText = sql;
  sqlCommand.ExecuteNonQuery();
  sqlConnection.Close();
}
catch (Exception ex)
{
  MessageBox.Show("Ups, exception: " + ex.Message);
}
finally
{
  sqlConnection.Close();
}