.net Threading:Passing parameters to the thread for ParameterizedThreadStart in C# (csharp / dot.net)

0.Create MultiThreadArgument class and add all parameters for thread starting 
public class MultiThreadArgument {
        public MerchantBase merchant;
        public TransactionCollection transactionCollection;
        public string email;
}

1.Thread starter in main thread class (thread class): 
private void ThreadStarter(MerchantBase m, TransactionCollection c,string email){
        if (c.Count > 0) {
            Thread th = new Thread(new ParameterizedThreadStart(ThreadWorker));
            // create class parameters :
            MultiThreadArgument ma = new MultiThreadArgument();
            ma.merchant = m;
            ma.transactionCollection = c;
            ma.email = email;
            th.IsBackground = true;
            th.Start(ma);
        }
}

2.Thread worker in main class:
private void ThreadWorker(Object o) {
        MultiThreadArgument ma = (MultiThreadArgument)o;
        DateTime st = DateTime.Now;
        string mid = ma.merchant.ID.ToString();
        Logger.prn("*** Processing started for merchant #", mid , "transactions - ", ma.transactionCollection.Count.ToString());
        ma.merchant.ProcessRequest(ma.transactionCollection, this);
            .....
}

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