WCF error loading data

Ahmed Boughattas

Hello , I am found an error using WCF service.
I am working on a silverlight project using the ADO.NET POCO generator.
The problem is that when I use a grid to print data from the Database, An exception occurs , and this is what is written :
Server NOTFOUND and the location for the error is :
System.Collections.ObjectModel.ObservableCollection _result = ((System.Collections.ObjectModel.ObservableCollection)(base.EndInvoke("loadall", _args, result)));

this is an example of a method that I used :
[OperationContract]
public List GetEmployees()
{
Esprit_FleetEntities db = new Esprit_FleetEntities();
var emp = from e in db.Employees

select e;
return emp.ToList();
}

In fact, When I don't use the POCO project and generator it works, but usiing this hierarchy causes a problem I think.
So can you Help me PLEASE!
thanks

2 Replies

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Jignesh Trivedi14y ago
hi,

Please refer below link,
it explain how to achive this,

http://msdn.microsoft.com/en-us/library/system.servicemodel.serviceknowntypeattribute.aspx

hope this help.
0
Jignesh Trivedi14y ago
hi,

Try..
[OperationContract]
   public Employees[] GetEmployees()
        {
            Esprit_FleetEntities db = new Esprit_FleetEntities();
            var emp = from e in db.Employees

                                    select e;
            return emp.ToArray();
        }
Hope this help.
0