// Insert Record
public void InsertBilling(Billing billing)
{
billing.ID = (int)(from b in billingData.Descendants("item") orderby (int)b.Element("id") descending select (int)b.Element("id")).FirstOrDefault() + 1;
billingData.Root.Add(new XElement("item", new XElement("id", billing.ID), new XElement("customer", billing.Customer),
new XElement("JobType", billing.JobType), new XElement("date", billing.Date.ToShortDateString()), new XElement("description", billing.Description),
new XElement("hours", billing.Hours)));
billingData.Save(HttpContext.Current.Server.MapPath("~/App_Data/Billings.xml"));
}
// Edit Record
public void EditBilling(Billing billing)
{
XElement node = billingData.Root.Elements("item").Where(i => (int)i.Element("id") == billing.ID).FirstOrDefault();
node.SetElementValue("customer", billing.Customer);
node.SetElementValue("JobType", billing.JobType);
node.SetElementValue("date", billing.Date.ToShortDateString());
node.SetElementValue("description", billing.Description);
node.SetElementValue("hours", billing.Hours);
billingData.Save(HttpContext.Current.Server.MapPath("~/App_Data/Billings.xml"));
}