private double CalculateItemAmount(bool purchase)
{
double amt = 0;
if (!string.IsNullOrEmpty(txtQuantity.Text) && !string.IsNullOrWhiteSpace(txtQuantity.Text) && !string.IsNullOrEmpty(txtRate.Text))
{
double rate = Convert.ToDouble(txtRate.Text);
int quantity = Convert.ToInt32(txtQuantity.Text);
if (!purchase)
{
amt = (CalculationHelper.AmountRemovingGST(rate)) * quantity;
}
else
{
amt = rate * quantity;
}
}
return(amt);
}
private void AddItem()
{
try
{
Logger.Info("Add item start.");
var selectedItem = cmbAddItem.SelectedItem as DropDown;
bool addNew = true;
if (ovlItems.GetItemCount() > 0)
{
var items = ovlItems.Objects.Cast <BillingItemModel>().ToList();
var rate = toggleBilling.Checked ? Convert.ToDouble(txtRate.Text) : CalculationHelper.AmountRemovingGST(Convert.ToDouble(txtRate.Text));
items = items.Where(x => x.ProductValue == selectedItem.Value && x.Rate == rate).ToList();
if (items.Any())
{
var existingItem = items.First();
existingItem.Quantity += Convert.ToInt32(txtQuantity.Text);
existingItem.Total += CalculationHelper.RoundAmount(CalculateItemAmount(toggleBilling.Checked));
addNew = false;
ovlItems.UpdateObject(existingItem);
Logger.Info(string.Format("Added item {0} in existing entry.", existingItem.ProductName));
}
}
if (addNew)
{
BillingItemModel salesItem = new BillingItemModel();
salesItem.SrNo = ovlItems.Items.Count + 1;
salesItem.ProductName = selectedItem.Name.ToString();
salesItem.Quantity = Convert.ToInt32(txtQuantity.Text);
salesItem.Rate = toggleBilling.Checked ? Convert.ToDouble(txtRate.Text) : CalculationHelper.AmountRemovingGST(Convert.ToDouble(txtRate.Text));
salesItem.Total = CalculationHelper.RoundAmount(CalculateItemAmount(toggleBilling.Checked));
salesItem.ProductValue = selectedItem.Value.ToString();
// Add in items list.
ovlItems.AddObject(salesItem);
Logger.Info(string.Format("Added item {0} in items list.", salesItem.ProductName));
}
txtRound.Text = string.Empty;
Logger.Info("Add item success.");
}
catch (Exception ex)
{
Logger.Error("Error in add item.");
throw ex;
}
}