[SOLVED] Publishing InfoPath Form with custom code as admin-approved template

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C#

InfoPath

SharePoint2010

I'm in yet another fix. This time its with getting my infopath form with custom code to work in my form library. Here is the code I have written to calculate the difference between 2 date time picker controls and it works fine in the preview mode. But when I publish the form to SharePoint as an admin-managed template, the end date date time picker control doesn't work hence the calculation doesnt work as well. I have viewed the ULS logs and event viewers and I can't find any errors. Anyone with ideas on what might possibly be wrong? Thanks.

using Microsoft.Office.InfoPath;
using System;
using System.Xml;
using System.Xml.XPath;
using System.Collections.Generic;
using Microsoft.SharePoint;
namespace Test
{
    public partial class FormCode
    {
                       public object res
        {
            get
            {
                return FormState["res"];
            }
            set
            {
                FormState["res"] = value;
            }
        }
        public object result
        {
            get
            {
                return FormState["result"];
            }
            set
            {
                FormState["result"] = value;
            }
        }
                public void InternalStartup()
        {
            EventManager.XmlEvents["/my:myFields/my:group1/my:EndDT"].Changed += new XmlChangedEventHandler(EndDT_Changed);
        }
        public void EndDT_Changed(object sender, XmlEventArgs e)
        {
            
            
            // Write your code here to change the main data source.
            if (e.Operation == XmlOperation.ValueChange)
            {
                //Retrieve the values for the start and end time
                string startTimeValue = e.Site.SelectSingleNode("../my:StartDT",
                  NamespaceManager).Value;
                string endTimeValue = e.Site.SelectSingleNode("../my:EndDT",
                  NamespaceManager).Value;
                if (!String.IsNullOrEmpty(startTimeValue)
                  && !String.IsNullOrEmpty(endTimeValue))
                {
                    //Convert the time values to DateTime objects
                    //TimeSpan startTime = TimeSpan.Parse(startTimeValue);
                    //TimeSpan endTime = TimeSpan.Parse(endTimeValue);
                    DateTime startTime;
                    DateTime endTime;
                    //string date1 = "2015-03-23 12:34:56";
                    //string date2 = "2015-03-23 12:34:56";
                    try
                    {
                        startTime = DateTime.Parse(startTimeValue);
                        endTime = DateTime.Parse(endTimeValue);
                        //int startTime2 = startTime.Date.Hour;
                        //int endTime2 = endTime.Date.Hour;
                        //int a = startTime.Hour;
                        //int b = endTime.Hour;
                        TimeSpan diff = endTime.Subtract(startTime);
                        string dateInput = diff.ToString();
                        int day = 0, hour = 0, minutes = 0;
                        try
                        {
                            List<string> dateSplit = new List<string>(dateInput.Split('.', ':'));
                            if (dateSplit.Count == 4)
                            {
                                for (int i = 2; i < dateSplit.Count; i++) // Loop with for. 
                                {
                                    day = int.Parse(dateSplit[0].ToString());
                                    hour = int.Parse(dateSplit[1].ToString());
                                    minutes = int.Parse(dateSplit[2].ToString());
                                }
                                res = (int)day * 24;
                                result = (string)res + hour + ":" + minutes;
                            }
                            else if (dateSplit.Count == 3)
                            {
                                for (int i = 2; i < dateSplit.Count; i++) // Loop with for. 
                                {
                                    day = int.Parse(dateSplit[0].ToString());
                                    hour = int.Parse(dateSplit[1].ToString());
                                    minutes = int.Parse(dateSplit[2].ToString());
                                }
                                res = day;
                                result = res + ":" + hour;
                            }
                        }
                        catch (Exception ek)
                        {
                        }
                    }
                    catch (FormatException ex)
                    {
                    //Retrieve the time difference field node and remove its nil attribute
                    XPathNavigator nodeNav = e.Site.SelectSingleNode("../my:Duration",
                      NamespaceManager);
                    if (nodeNav.MoveToAttribute("nil", NamespaceManager.LookupNamespace("xsi")))
                        nodeNav.DeleteSelf();
                    //Retrieve and display the time difference
                    e.Site.SelectSingleNode("../my:Duration", NamespaceManager).SetValue(result.ToString());
                    //((TimeSpan)endTime.Subtract(startTime)).Hours.ToString());
                    //(diff.ToString());
                    //((TimeSpan)endTime.Subtract(startTime)).Hours.ToString());
                }
            }
        }
    }
}