Error Asignning a simple list to an ItemsSource

[Amin Espinoza]

Hi, this is my problem. I have this. on my code behind

class Producccion

{

public int Periodo { get; set; }

public int Cantidad { get; set; }

}

public void CrearDatos()

{

ObservableCollection<Producccion> listaProduccion = new ObservableCollection<Producccion>();

listaProduccion.Clear();

listaProduccion.Add(new Producccion { Periodo = 1, Cantidad = 2556 });

listaProduccion.Add(new Producccion { Periodo = 2, Cantidad = 2558 });

listaProduccion.Add(new Producccion { Periodo = 3, Cantidad = 2654 });

listaProduccion.Add(new Producccion { Periodo = 4, Cantidad = 2354 });

SeriesMapping serie1 = new SeriesMapping();

serie1.SeriesDefinition = new LineSeriesDefinition();

serie1.SeriesDefinition.ShowItemToolTips = true;

serie1.ItemMappings.Add(new ItemMapping("Periodo", DataPointMember.XValue));

serie1.ItemMappings.Add(new ItemMapping("Cantidad", DataPointMember.YValue));

graficoControl.SeriesMappings.Add(serie1);

graficoControl.ItemsSource = listaProduccion;

}



And then I get this error.



Message: System.MethodAccessException: Error al intentar el método 'System.Linq.EnumerableQuery.Create(System.Type, System.Collections.IEnumerable)' obtener acceso al método 'System.Linq.EnumerableQuery`1<System.__Canon>..ctor(System.Collections.Generic.IEnumerable`1<System.__Canon>)'.

[Rosko]

Hello Amin,

The problem is coming from the security restrictions of your class. By default, every class is with private security modifies. You need to make it public.

public class Producccion
{
   public int Periodo { get; set; }
   public int Cantidad { get; set; }
}

Greetings,

Rosko

the Telerik team