Hello All, Thanks in advance.

I Have created a form with a few dropdown selections. and I need to post the selected value back to the document type in backoffice.

I created the form with the dropdowns from this tutorial.:http://www.codeshare.co.uk/blog/how-to-use-an-umbraco-data-type-to-populate-an-mvc-drop-down-list/... which uses a helper to generate the dropdown options from a datatype and display it on the form.

Now I need to use the content service to set the value in backoffice, but I cant seem to do it for the dropdown fields. here is my controller:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Umbraco.Web.Mvc;
using System.Text;
using System.Net.Mail;
using Ankur_Stellar.Models;
using Ankur_Stellar.Helpers;

namespace Ankur_Stellar.Controllers
{
public class WarrantySurfaceController : SurfaceController
{
    private PreValueHelper preValueHelper => new PreValueHelper();

    public ActionResult ShowForm()// links controller to template/macro
    {
        WarrantyModel myModel = new WarrantyModel();
        myModel.InstallTypes = preValueHelper.GetPreValuesFromAppSettingName("InstallTypeDropdown");
        myModel.Applications = preValueHelper.GetPreValuesFromAppSettingName("ApplicationDropdown");
        myModel.PurchasedFroms = preValueHelper.GetPreValuesFromAppSettingName("PurchasedDropdown");
        return PartialView("WarrantyForm", myModel); // Links to Partial View 
    }


    public ActionResult HandleFormPost(WarrantyModel model) //Links functions to the form in the partial view...BeginUmbracoForm
    {
        if (ModelState.IsValid) // For Field Validation 
        {
            // This will post submittion to Umbraco Database 
            var newWarranty = Services.ContentService.CreateContent(model.WarLastName + "-" + DateTime.Now, 1204, "warrantyFormula");
            var myService = ApplicationContext.Services.DataTypeService;


            newWarranty.SetValue("WarInstallDate", model.WarInstallDate);
            newWarranty.SetValue("WarSqFt", model.WarSqFt);
            newWarranty.SetValue("WarInstallType", need the selected value of the dropdown);
            newWarranty.SetValue("WarApplication", model.Applications);
            newWarranty.SetValue("WarColor", model.WarColor);


            Services.ContentService.SaveAndPublishWithStatus(newWarranty);


            catch (SmtpException)
            {
                TempData["Failed"] = true;

                return RedirectToCurrentUmbracoPage();
            }

            TempData["Success"] = true;

            return RedirectToCurrentUmbracoPage();
        }
        TempData["Failed2"] = true;
        return RedirectToCurrentUmbracoPage();
    }



}
}