Call multiple SQL Server stored procedures in a transaction

Question

For usage in my current project I\'ve created a class that allows me to call SQL Server async.

My code looks like this:

internal class CommandAndCall         


        

Answer 1

public class Command
{
    public string sql { get; set; }
    public CommandType cmdType { get; set; }
    public Dictionary parameter { get; set; } = null;
}

    private Command insertInvoice(Invoice invoice)
    {
        try
        {
            Dictionary parameterLocal = new Dictionary();

            parameterLocal.Add("p_customerId", invoice.customerId);
            parameterLocal.Add("p_invoiceNo", invoice.invoiceNo);
            parameterLocal.Add("p_invoiceDate", invoice.invoiceDate);
            parameterLocal.Add("p_invoiceAmount", invoice.invoiceAmount);                
            parameterLocal.Add("p_withInvoice", invoice.withInvoice);

            return (new Command { sql = "sp_insertInvoice", cmdType = CommandType.StoredProcedure, parameter = parameterLocal });
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

    private Command insertInvoiceModel(InvoiceModel invoiceModel)
    {
        try
        {
            Dictionary parameterLocal = new Dictionary();

            parameterLocal.Add("p_invoiceNo", invoiceModel.invoiceNo);
            parameterLocal.Add("p_model", invoiceModel.model);
            parameterLocal.Add("p_quantity", invoiceModel.quantity);
            parameterLocal.Add("p_unitPrice", invoiceModel.unitPrice);

            return (new Command { sql = "sp_insertInvoiceModel", cmdType = CommandType.StoredProcedure, parameter = parameterLocal });
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

 List commandList = new List();

 cmd = insertInvoice(invoicesave);

 commandList.Add(cmd);

 cmd = insertInvoiceModel(invoiceModelSave);

 commandList.Add(cmd);

        try
        {
            erplibmain.erpDac.runOleDbTransaction(commandList);
        }
        catch (Exception ex)
        {
            throw ex;
        }

    public void runOleDbTransaction(List commandList)
    {
        OleDbConnection erpConnection = new OleDbConnection(ErpDalMain.connectionstring);
        erpConnection.Open();

        OleDbCommand erpCommand = erpConnection.CreateCommand();
        OleDbTransaction erpTrans;

        // Start a local transaction
        erpTrans = erpConnection.BeginTransaction();
        // Assign transaction object for a pending local transaction
        erpCommand.Connection = erpConnection;
        erpCommand.Transaction = erpTrans;

        try
        {
            foreach (Command cmd in commandList)
            {
                erpCommand.CommandText = cmd.sql;
                erpCommand.CommandType = cmd.cmdType;

                foreach (KeyValuePair entry in cmd.parameter)
                {
                    erpCommand.Parameters.AddWithValue(entry.Key, entry.Value);
                }

                erpCommand.ExecuteNonQuery();

                erpCommand.Parameters.Clear();
            }

            erpTrans.Commit();
        }
        catch (Exception e)
        {
            try
            {
                erpTrans.Rollback();
            }
            catch (OleDbException ex)
            {
                if (erpTrans.Connection != null)
                {
                    throw ex;
                }
            }

            throw e;
        }
        finally
        {
            erpConnection.Close();
        }
    }