public void SaveDetail()
{
if (PRDetail.ProductId != 0)
{
PurchaseReturnDetail pod = PRDetails.Where(x => x.ProductId == PRDetail.ProductId).FirstOrDefault();
if (pod == null)
{
pod = new PurchaseReturnDetail();
PRDetails.Add(pod);
}
else
{
PRDetail.Quantity += pod.Quantity;
}
PRDetail.toCopy <PurchaseReturnDetail>(pod);
ClearDetail();
ItemAmount = PRDetails.Sum(x => x.Amount);
}
}
