calculateValues(index: number) {

        this.products[index].cartId = 1;


        if (this.products[index].unitId === undefined) {

            this.products[index].unitId = this.products[index].defaultUnitNo;

            if (this.products[index].auxiliaryUnit) {

                this.products[index].converter = FormattingUtils.unitConverterString(this.products[index].denominator, this.products[index].auxiliaryUnit, this.products[index].numerator, this.products[index].basicUnit);

            } else {

                this.products[index].auxiliaryUnit = this.products[index].basicUnit;

            }


        }

changeQuantity(index, quantity) {
        this.products[index].quantity = quantity;
        this.products[index].quantityChanged = true;
    }