GetItemTransactions sample using .NET SDK C#

/*
© 2011-2013 eBay Inc., All Rights Reserved
Licensed under CDDL 1.0 - http://opensource.org/licenses/cddl1.php
*/

ApiContext oContext = new ApiContext();

            //set the dev,app,cert information
            oContext.ApiCredential.ApiAccount.Developer = "xxx";
            oContext.ApiCredential.ApiAccount.Application = "xxx";
            oContext.ApiCredential.ApiAccount.Certificate = "xxx";
            

            //set the AuthToken
            oContext.ApiCredential.eBayToken = "xxx";

            //set the endpoint (sandbox) use https://api.ebay.com/wsapi for production
            oContext.SoapApiServerUrl = "https://api.sandbox.ebay.com/wsapi";

            //set the Site of the Context
            oContext.Site = eBay.Service.Core.Soap.SiteCodeType.US;

            //the WSDL Version used for this SDK build
            oContext.Version = "817";

            //very important, let's setup the logging
            ApiLogManager oLogManager = new ApiLogManager();
            oLogManager.ApiLoggerList.Add(new eBay.Service.Util.FileLogger("GetItemTransactions.log", true, true, true));
            oLogManager.EnableLogging = true;
            oContext.ApiLogManager = oLogManager;

            GetItemTransactionsCall oGetItemTransactionsCall = new GetItemTransactionsCall(oContext);

            //' set the Version used in the call
            oGetItemTransactionsCall.Version = oContext.Version;

            //' set the Site of the call
            oGetItemTransactionsCall.Site = oContext.Site;

            //' enable the compression feature
            oGetItemTransactionsCall.EnableCompression = true;

            DateTime ModTimeFrom, ModTimeTo, CreateTimeFromPrev;

            //ModTimeTo set to the current time
            ModTimeTo = DateTime.Now.ToUniversalTime();

            //ts1 is 15 mins
            TimeSpan ts1 = new TimeSpan(9000000000);
            CreateTimeFromPrev = ModTimeTo.Subtract(ts1);

            //Set the ModTimeFrom the last time you made the call minus 2 minutes
            ModTimeFrom = CreateTimeFromPrev;

            //set ItemID and <DetailLevel>ReturnAll<DetailLevel>
            oGetItemTransactionsCall.ItemID = "110092045184";
            oGetItemTransactionsCall.DetailLevelList.Add(DetailLevelCodeType.ReturnAll);

            oGetItemTransactionsCall.GetItemTransactions("110092045184", ModTimeFrom, ModTimeTo);