public ActionResult TicketUserEdit(int ticketId) {

        var ticketIdResult = Repository._list.FirstOrDefault(x => x.TicketId == ticketId);

        ViewBag.PriorityId   = new SelectList(ComboHelper.GetPriority(ticketIdResult.PriorityId), "PriorityId", "PriorityLevel" );
        ViewBag.ProductId    = new SelectList(ComboHelper.GetProduct(ticketIdResult.ProductId), "ProductId", "Name", Repository._product_list);
        ViewBag.SubProductId = new SelectList(ComboHelper.GetSubProduct(ticketIdResult.ProductId,ticketIdResult.SubProductId), "SubProductId", "Name", Repository._subproduct_list);
        ViewBag.TaskId       = new SelectList(ComboHelper.GetTask(ticketIdResult.ProductId, ticketIdResult.SubProductId,ticketIdResult.TaskId), "TaskId", "Name", Repository._task);
        ViewBag.VersionId    = new SelectList(ComboHelper.GetVersion(ticketIdResult.VersionId), "VersionId", "VersionName", Repository._patchlist);

        return View(ticketIdResult);
    }

public static IEnumerable GetProduct(int productId)
    {
        var product = Repository._product_list.Where(p => p.ProductId == productId).ToList();

        return product = product.OrderBy(p => p.Name ).ToList();
    }


    public static IEnumerable GetSubProduct(int productId,int subProductId)
    {
        var subproduct = Repository._subproduct_list.Where(p => p.SubProductId == subProductId && p.ProductId == productId).ToList();

        return subproduct = subproduct.OrderBy(p => p.Name ).ToList();
    }

    public static IEnumerable GetTask(int productId, int subProductId,int taskId)
    {
        var task = Repository._task.Where(p => p.TaskId == taskId && p.ProductId == productId && p.SubProductId ==subProductId  ).ToList();

        return task = task.OrderBy(p => p.Name).ToList();
    }