(Paul Hatcher)
12/20/2002 12:44:00 AM
In article <pOOYIB1pCHA.1928@cpmsftngxa06>,
felixwu@online.microsoft.com (Felix Wu(MS)) wrote:
> Hi Paul ,
>
> If the assemblies are loaded from the local disk, you have unlimited
> permission by default.
>
> If you want to check the permission, you can the create an object of
> ReflectionPermission type imperatively and then call Demand method.
If
> you haven't this permissioin, security exception would occur.
>
> Regards,
>
> Felix Wu
> =============
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
>
>
> --------------------
> >From: phatcher@cix.co.uk (Paul Hatcher)
> >Reply-To: phatcher@cix.co.uk
> >Subject: RE: Inherited private fields via reflection?
> >Date: Thu, 19 Dec 2002 08:54 +0000 (GMT Standard Time)
> >Message-ID: <memo.20021219085405.1316B@terra.compulink.co.uk>
> >References: <9R7d1iypCHA.2580@cpmsftngxa09>
> >Newsgroups: microsoft.public.dotnet.framework.sdk
> >NNTP-Posting-Host: lan-102.phatch.adsl.alcom.co.uk 212.47.82.102
> >Lines: 1
> >Path: cpmsftngxa06!TK2MSFTNGP08!TK2MSFTNGP09
> >Xref: cpmsftngxa06 microsoft.public.dotnet.framework.sdk:5460
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> >
> >In article <9R7d1iypCHA.2580@cpmsftngxa09>,
> >felixwu@online.microsoft.com (Felix Wu(MS)) wrote:
> >
> >> 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
> >> =============
> >> This posting is provided "AS IS" with no warranties, and confers
no
> >> rights.
> >>
> >>
> >> --------------------
> >> >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
> >> >Lines: 29
> >> >Message-ID: <065701c2a5c3$308e8ed0$d6f82ecf@TK2MSFTNGXA13>
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> >> > charset="iso-8859-1"
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> >> >Thread-Index: AcKlwzCOgU3Gzw4LT6Sc0d0f1mU34Q==
> >> >Newsgroups: microsoft.public.dotnet.framework.sdk
> >> >Path: cpmsftngxa06
> >> >Xref: cpmsftngxa06 microsoft.public.dotnet.framework.sdk:5418
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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
> >> >
> >> >
> >> >
> >>
> >>
> >Thanks, supplementary question: can I enquire if I have reflection
> >permission?
> >
> >Paul
> >
>
>
Thanks
Paul