(Felix Wu [MS])
12/19/2002 7:35:00 AM
Hi Paul,
Yes, but you need to call the GetField method on its parent type object.
For example:
Public Class Parent
Private myField As String = "private string in Parent class"
End Class
Public Class Child : Inherits Parent
End Class
Dim myInstance As New Child()
Dim t As Type = myInstance.GetType().BaseType
Try
Dim fi As FieldInfo = t.GetField("myField", BindingFlags.NonPublic
Or BindingFlags.Instance)
Console.WriteLine("Parent's Secret number is {0}.",
fi.GetValue(myInstance))
Catch ex As Exception
Console.WriteLine(ex)
End Try
Please note that if the requested type is non-public and the caller does
not have ReflectionPermission to reflect non-public objects outside the
current assembly, this method returns a null reference (Nothing in Visual
Basic).
Hope this helps.
Regards,
Felix Wu
=============
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--------------------
>Content-Class: urn:content-classes:message
>From: "Paul Hatcher" <phatcher@cix.co.uk>
>Sender: "Paul Hatcher" <phatcher@cix.co.uk>
>Subject: Inherited private fields via reflection?
>Date: Tue, 17 Dec 2002 03:55:27 -0800
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>
>Is it possible to retreive a private field in a child
>class that was declared in the parent?
>
>For example, given
>
>Public Class Parent
> Private myField As String
>End Clas
>
>Public Class Child : Inherits Parent
>End Class
>
>can I assign to myField in the context of Child via
>reflection. I'm using reflection as follows
>
>Dim field As FieldInfo = objType.GetField(name, flags)
>
>name = name of the field I'm after
>flags = BindingFlags.Public Or BindingFlags.NonPublic Or
>BindingFlags.IgnoreCase Or BindingFlags.Instance
>
>If it's not possible directly, it is possible to 'walk'
>the inheritance hierarchy?
>
>Regards
>
>Paul
>
>
>