public string Addcustom(int pid, int filter, string size)
        {
            var ty = (from p in db.Custom_Products
                      where p.Filter.Equals(filter)
                      select p).FirstOrDefault();


            if (ty == null)
            {
                var newtype = new Custom_Product
                {
                    Filter      = filter,
                    Custom_Size = size
                };
                db.Custom_Products.InsertOnSubmit(newtype);

                try
                {
                    db.SubmitChanges();
                    return("added");
                }
                catch (Exception ex)
                {
                    ex.GetBaseException();
                    return("not added");
                }
            }
            else
            {
                return("error");
            }
        }
        public string Addcustom(int filter, string size, string colour, string imageURL = "")
        {
            if (imageURL != null)
            {
                var newtype = new Custom_Product
                {
                    Filter      = filter,
                    Custom_Size = size,
                    Colour      = colour,
                    Logo        = imageURL
                };

                db.Custom_Products.InsertOnSubmit(newtype);

                try
                {
                    db.SubmitChanges();
                    return("added");
                }
                catch (Exception ex)
                {
                    ex.GetBaseException();
                    return("not added");
                }
            }
            else
            {
                var newtype = new Custom_Product
                {
                    Filter      = filter,
                    Custom_Size = size,
                    Colour      = colour
                };

                db.Custom_Products.InsertOnSubmit(newtype);

                try
                {
                    db.SubmitChanges();
                    return("added");
                }
                catch (Exception ex)
                {
                    ex.GetBaseException();
                    return("not added");
                }
            }
        }