mysql transaction (commit and rollback)

Question

below is the code i am using for MySqlTransaction and it is running perfectly.... but problem is as i am using single instance of mysqlcommand i have to use unique PARAMETER

Answer 1

You can use Using keyword for auto dispose objects. i don't know VB but I know C#. Please convert the code into VB.

using(MySqlConnection con= new MySqlConnection("connectionString"))
{
    con.Open();
    using(MysqlTransaction trans=con.BeginTransaction())
    {
        try
        {
            //command to executive query
            using(MysqlCommand cmd= new MySqlCommand("query", con, trans))
            {
                cmd.Parameters.AddWithValue("@parameter1", parametervalue1);
                cmd.Parameters.AddWithValue("@parameter2", parametervalue2);
                cmd.ExecutenonQuery();
                cmd.Parameters.Clear();
            }
            //command to execute query
            using(MysqlCommand cmd= new MySqlCommand("query", con, trans))
            {
                cmd.Parameters.AddWithValue("@parameter1", parametervalue1);
                cmd.Parameters.AddWithValue("@parameter2", parametervalue2);
                cmd.ExecutenonQuery();
                cmd.Parameters.Clear();
            }
            //command to execute query
            using(MysqlCommand cmd= new MySqlCommand("query", con, trans))
            {
                cmd.Parameters.AddWithValue("@parameter1", parametervalue1);
                cmd.Parameters.AddWithValue("@parameter2", parametervalue2);
                cmd.ExecutenonQuery();
                cmd.Parameters.Clear();
            }
            trans.Commit();
        }
        catch(Exception ex)
        {
            trans.Rollback();
        }
    }
}