Overloading Getter And Setter of Property Using Attribute (FEATURE REQUEST)

I want to create a custom attribute that overrides the getter and setter of a property so that I can reuse some logic.

### CASE
I want to create an attribute for properties that use the ViewState instead of a backing field. I can't do this without being able to override the getter and setter.

### MY Code without the attribute
```
Public Property sQuestionaire As Object
Get
Return Me.ViewState(NameOf(sQuestionaire))
End Get
Set
Me.ViewState(NameOf(sQuestionaire)) = Value
End Set
End Property
```

### New Code with the attribute
```

Public Property sQuestionaire As Object
```