[CLOSED] Error with Mapping property on Store

[marco.morreale]

Hi,
I can't get the mappingName property work.
In debug I see "new_Famiglia.Name" has got a value but I got this error: "Run-time Error of Microsoft JScript: 'new_Famiglia.Name' is null or is not an object" (see image with Italian error message).

The "IncidentId" field is displayed.
Where am I wrong?

I can't send a working example as my data source is Microsoft CRM OData protocol.

Please, can you help me?
Thanks in advance
Marco

.aspx

       <ext:GridPanel ID="gpTicketMonitor" 
            runat="server"     
            Title="Ticket Monitor"                
            >
            <Store>
                <ext:Store ID="Store1" runat="server">
                    <Model>
                        <ext:Model ID="Model1" runat="server">
                            <Fields>                            
                            <ext:ModelField Name="IncidentId"  />
                            <ext:ModelField Name="new_Famiglia" Mapping="new_Famiglia.Name"   />
                             </Fields>
                        </ext:Model>
                    </Model>
                </ext:Store>
            </Store>
            <ColumnModel ID="ColumnModel1" runat="server">
                <Columns>
                     <ext:Column runat="server" Text="IncidentId" DataIndex="IncidentId" />
                     <ext:Column runat="server" Text="new_Famiglia" DataIndex="new_Famiglia" />
                </Columns>
            </ColumnModel>
        </ext:GridPanel>

WebService Method

       [WebMethod]
        public DataServiceCollection<Incident> getIncident_List()
        {
            DataServiceCollection<Incident> IncidentCollection;

            var query = from c in _context.IncidentSet
                        where c.IncidentId == new Guid("c63d4f0e-7340-e211-90fe-00155dde0185")
                        select new Incident
                        {
                            IncidentId = c.IncidentId,
                              new_Famiglia = c.new_Famiglia
                        };

            IncidentCollection = new DataServiceCollection<Incident>();
            IncidentCollection.Load(query);

            return IncidentCollection;
        }

.cs

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!X.IsAjaxRequest)
            {
                DataWebService wsData = new DataWebService();

                this.Store1.DataSource = wsData.getIncident_List();

                this.Store1.DataBind();
            }

        }