//method to increment row details by one
public void incrementByOne(String billRowId, String price)
{
billrow = billrowList.Find(x => x.billrowID == billRowId);//getting the bill row from the list
//modifying the bill row
double unitprice = Double.Parse(billrow.unitPrice);
double total;
bool res = Double.TryParse(billrow.total, out total);
if (res == false)
{
MessageBox.Show("Cannot increment");
}
else
{
total = total + unitprice;
//assign it to text field again
billrow.total = total.ToString();
}
int qty = Int32.Parse(billrow.Quantity);
qty = qty + 1;
billrow.Quantity = qty.ToString();
//adding again to the list
billrowList.Add(billrow);
setAmountToPay();
loadBilllist(); //load the bill list again
}
}//end of filtering method
//method to add bill row
public void addToBillList(String id, String name, String price)
{
billrow = new BillRow();
billrow.billrowID = id;
billrow.FoodName = name;
billrow.Quantity = 1.ToString();; //this should be changed
billrow.total = price;
billrow.unitPrice = price; //price of a one food ite
billrowList.Add(billrow);
loadBilllist();
}