public void AssignProductSetting(CategoryType catType, int catId, int freeCount)
        {
            this.CustomSettings.Add(new ProductCustomization()
            {
                CategoryID = catId,
                CustomizationType = catType,
                DefaultFreeCount = freeCount,
                ProductID = this.ProductID
            });
        }

if(CustomeSettings == null) CustomerSettings =
                                    new Collection<ProductCustomization>();

var cat = CustomSettings.FirstOrDefault(r=>r.CategoryId == catID &&
                                           r.CustomizationType == catType);
if(cat!=null)
{
     cat.DefaultFreeCount = freeCount;
     cat.ProductID = this.ProductID;
}
else
{
     this.CustomSettings.Add(new ProductCustomization()
        {
            CategoryID = catId,
            CustomizationType = catType,
            DefaultFreeCount = freeCount,
            ProductID = this.ProductID
        });
 }

if(this.CustomSettings.Any(x=>x.CategoryID == catId))
{
  //Update
}
else
{
  //Add
}

var tempAllocation = new List<Object>();
    if (tempAllocationR.Count > 0 && tempAllocationV.Count > 0)
                    {
                        foreach (TempAllocation tv in tempAllocationV)
                        {
                            var rec = tempAllocationR.FirstOrDefault(tr => tr.TERR_ID == tv.TERR_ID && tr.TERR == tv.TERR && tr.Team == tv.Team);
                            if (rec != null)
                            {
                                rec.Vyzulta = tv.Vyzulta;
                            }
                            else
                            {
                                tempAllocationR.Add(tv);
                            }

                        }
                        tempAllocation = tempAllocationR;
                    }
                    else if (tempAllocationV.Count == 0 && tempAllocationR.Count > 0)
                    {
                        tempAllocation = tempAllocationR;
                    }
                    else if (tempAllocationR.Count == 0 && tempAllocationV.Count > 0)
                    {
                        tempAllocation = tempAllocationV;
                    }