public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
        {
            View itemView = LayoutInflater.From(parent.Context).
                            Inflate(Resource.Layout.OrderArticleCardView, parent, false);
            // Create a ViewHolder to find and hold these view references, and
            // register OnClick with the view holder:
            OrderArticleViewHolder vh = new OrderArticleViewHolder(itemView);

            return(vh);
        }
        public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
        {
            OrderArticleViewHolder vh = holder as OrderArticleViewHolder;

            // Set the TextViews in this ViewHolder's CardView
            // from this position in the photo album:
            vh.articleName.Text       = listOfOrderArticles[position].ArticleName;
            vh.articlePrice.Text      = listOfOrderArticles[position].ArticlePrice;
            vh.articleQuantity.Text   = listOfOrderArticles[position].ArticleQuantity;
            vh.articleTotalPrice.Text = listOfOrderArticles[position].ArticleTotalPrice;

            //enable disable EditTexts depending on if we are creating order or we are looking at created orders
            vh.articlePrice.Enabled    = editTextEnabled;
            vh.articleQuantity.Enabled = editTextEnabled;

            //set limit of numbers to input after the decimal separator
            vh.articlePrice.SetFilters(new IInputFilter[] { new DecimalFilter(4) });
            //calculate new article total price as user types value in articlePrice
            vh.articlePrice.TextChanged += (object sender, Android.Text.TextChangedEventArgs e) => {
                listOfOrderArticles[position].ArticlePrice = e.Text.ToString();
                decimal articlePrice /*= Convert.ToDecimal(listOfOrderArticles[position].ArticlePrice)*/;
                if (!Decimal.TryParse(listOfOrderArticles[position].ArticlePrice, out articlePrice))
                {
                    articlePrice = 0;
                }
                decimal articleQuantity = Convert.ToDecimal(listOfOrderArticles[position].ArticleQuantity);
                listOfOrderArticles[position].ArticleTotalPrice = Math.Round(articlePrice * articleQuantity, 2).ToString();
                vh.articleTotalPrice.Text = listOfOrderArticles[position].ArticleTotalPrice.ToString();
                //calculate total price of all articles and set it to

                TextView totalPriceAllArticlesTextView = (TextView)((Activity)currentContext).FindViewById <TextView>(Resource.Id.totalPriceAllArticlesTextView);
                totalPriceAllArticlesTextView.Text = CaltulateTotalPriceOfAllOrderArticles().ToString();
            };

            //set limit of numbers to input after the decimal separator
            vh.articleQuantity.SetFilters(new IInputFilter[] { new DecimalFilter(3) });
            //calculate new article total price as user types value in articleQuantity
            vh.articleQuantity.TextChanged += (object sender, Android.Text.TextChangedEventArgs e) => {
                listOfOrderArticles[position].ArticleQuantity = e.Text.ToString();
                decimal articlePrice = Convert.ToDecimal(listOfOrderArticles[position].ArticlePrice);
                decimal articleQuantity /*= Convert.ToDecimal(listOfOrderArticles[position].ArticleQuantity)*/;
                //if entered value is not a number we set articleQuantity to 0
                if (!Decimal.TryParse(listOfOrderArticles[position].ArticleQuantity, out articleQuantity))
                {
                    articleQuantity = 0;
                }
                ;
                listOfOrderArticles[position].ArticleTotalPrice = Math.Round(articlePrice * articleQuantity, 2).ToString();
                vh.articleTotalPrice.Text = listOfOrderArticles[position].ArticleTotalPrice.ToString();
                TextView totalPriceAllArticlesTextView = (TextView)((Activity)currentContext).FindViewById <TextView>(Resource.Id.totalPriceAllArticlesTextView);
                totalPriceAllArticlesTextView.Text = CaltulateTotalPriceOfAllOrderArticles().ToString();
            };
        }