Collection Editor for enum -C#

I have a userControl to store filters of Destino. My code is below:

//In UserControl

[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public List<Destino> DestinosFiltro { get; set; }


//enum
public enum Destino
{
   [Description("Receita")]
   Receita = 0,
   [Description("Despesa")]
   Despesa = 1,
   [Description("Ativo")]
   Ativo = 2,
   [Description("Passivo")]
   Passivo = 3,
   [Description("Transitório")]
   Transitório = 4
}

Then the property DestinosFiltro appears in the Properties Page in Design mode. And when I am trying to edit this property in design time, a collection editor appears and work fine. But when I close the collection editor, the value entered is cleared. The value of the property DestinosFiltro is losted. Where is my mistake?  

Thank for all.