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I want that when opening a screen that loads a Picker, this control is set with the value "EXPIRED" ("CADUCADOS"), in the following way ...

The problem is that this picker has other values besides "EXPIRED" ("CADUCADOS") as shown in the following image...

The question is how can I set my Picker control to the "EXPIRED" value? , for this I occupy the SelectedIndex property supplied to an attribute of type int in the following way

 <!--PICKER-->
 <Picker 
 Title="Seleccione un estado" 
 SelectedIndex="Binding Index, Mode=TwoWay"
 ItemsSource="Binding ListaEstados, Mode=TwoWay"
 ItemDisplayBinding="Binding Estado" 
 SelectedItem="Binding SelectedEstado">
 </Picker>

My ViewModel.CS:

 int index;

 public int Index
 
 get
 
 return index;
 
 set
 
 if (index != value)
 
 index = value;
 PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Index)));
 
 
 

This is the method that fills the Picker with a List of "States" and it is here that I set the value of the Index ...

 private void LoadPickerEstados()
 
 ListaEstados.Clear();

 var caducados = new Estados
 
 IdEstado = 0,
 Estado = "CADUCADOS",
 ; 

 var aprobaryplanificar = new Estados
 
 IdEstado = 1,
 Estado = "POR APROBAR Y PLANIFICAR",
 ;

 var planificar = new Estados
 
 IdEstado = 4,
 Estado = "POR PLANIFICAR",
 ;

 ListaEstados.Add(caducados);
 ListaEstados.Add(aprobaryplanificar);
 ListaEstados.Add(planificar);

 Index = 1;

 

The problem is that when setting Index = 0 => this returns the Placeholder, when setting Index = 1 => it returns For approval and planning ("POR APROBAR Y PLANIFICAR") and when setting Index = 2 => it returns for planning ("POR PLANIFICAR"), but I can never get the value "EXPIRED" ("CADUCADOS")!!

What's going on? Am I using the right property?
How can I set the picker with the right value? any help for me?