protected void RadGrid1_UpdateCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
GridEditFormItem editForm = (GridEditFormItem)e.Item;
Hashtable newValues = new Hashtable();
XMLContext context = new XMLContext();
XDocument document = context.LoadDocument(GetPath());
List<XElement> ordersTable = context.GetTable(document, "Orders").ToList();
//Extract the new values from the editor controls
editForm.ExtractValues(newValues);
//Get the "Primary key" value that will be used to perform CRUD operations
string orderID = editForm.GetDataKeyValue(RadGrid1.MasterTableView.DataKeyNames[0]).ToString();
//Get a reference to the modified record
XElement orderToUpdate = (from order in ordersTable
where order.Attribute("OrderID").Value == orderID
select order).FirstOrDefault();
context.UpdateElement(ordersTable, ApplyChanges(orderToUpdate, newValues));
context.SaveChanges(document, GetPath());
;
}
protected void RadGrid1_DeleteCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
GridDataItem editForm = (GridDataItem)e.Item;
XMLContext context = new XMLContext();
XDocument document = context.LoadDocument(GetPath());
List<XElement> ordersTable = context.GetTable(document, "Orders").ToList();
string orderID = editForm.GetDataKeyValue(RadGrid1.MasterTableView.DataKeyNames[0]).ToString();
XElement orderToDelete = (from order in ordersTable
where order.Attribute("OrderID").Value == orderID
select order).FirstOrDefault();
context.DeleteElement(ordersTable, orderToDelete);
context.SaveChanges(document, GetPath());
}
protected void RadGrid1_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{
XMLContext context = new XMLContext();
XDocument document = context.LoadDocument(GetPath());
List<XElement> ordersTable = context.GetTable(document, "Orders").ToList();
//RadGrid1.VirtualItemCount = ordersTable.Count();
var gridSource = (from order in ordersTable
select new
{
OrderID = order.Attribute("OrderID").Value,
CustomerID = order.Element("CustomerID").Value,
OrderDate = order.Element("OrderDate").Value,
Freight = order.Element("Freight").Value,
ShipName = order.Element("ShipName").Value,
ShipCity = order.Element("ShipCity").Value,
ShipCountry = order.Element("ShipCountry").Value
});
RadGrid1.DataSource = gridSource.Skip(RadGrid1.CurrentPageIndex).Take(RadGrid1.PageSize);
}
protected void RadGrid1_InsertCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
GridEditFormItem editForm = (GridEditFormItem)e.Item;
Hashtable newValues = new Hashtable();
XMLContext context = new XMLContext();
XDocument document = context.LoadDocument(GetPath());
List<XElement> ordersTable = context.GetTable(document, "Orders").ToList();
//Extract the new values from the editor controls
editForm.ExtractValues(newValues);
XElement orderToInsert = new XElement("Order");
int orderID = int.Parse((from order in ordersTable
select order).LastOrDefault().Attribute("OrderID").Value);
orderToInsert.Add(new XAttribute("OrderID", ++orderID));
context.InsertElement(document, ApplyChanges(orderToInsert, newValues), "Orders");
context.SaveChanges(document, GetPath());
}
