public void AddItem(APISales postedItem)
{
List <APISales> list = GetData();
postedItem.ID = (list.Count + 1);
list.Add(postedItem);
}
public void UpdateItem(APISales postedItem)
{
var editedModel = GetData().First(i => i.ID == postedItem.ID);
editedModel.ID = postedItem.ID;
editedModel.IssueDate = postedItem.IssueDate;
editedModel.PostingDate = postedItem.PostingDate;
editedModel.CustomerName = postedItem.CustomerName;
editedModel.CustomerTaxCode = postedItem.CustomerTaxCode;
editedModel.VATInvoiceSerialNumber = postedItem.VATInvoiceSerialNumber;
editedModel.CustomerPhone = postedItem.CustomerPhone;
editedModel.Total = postedItem.Total;
editedModel.CustomerAddress = postedItem.CustomerAddress;
editedModel.Discription = postedItem.Discription;
editedModel.CreatedBy = postedItem.CreatedBy;
editedModel.Status = postedItem.Status;
editedModel.IncludedVATVoice = postedItem.IncludedVATVoice;
}