Is it possible to detect if a property of a class is Readonly, WriteOnly, or
Read/Write?

With reflection, check the PropertyInfo.CanRead and CanWrite
properties.


Mattias

Ok, so I took your advice and looked into reflection, and here's a quick and
dirty of what I came up with:

Private Sub frmObject_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

    Me.Text = CType(Me.Tag, CommandOperationBase).GetType.ToString

    Dim a As Assembly = Assembly.GetAssembly(Me.Tag.GetType)
    Dim s As String = String.Empty

    For Each t As Type In a.GetExportedTypes
        For Each mi As MemberInfo In t.GetMembers
            If mi.DeclaringType Is Me.Tag.GetType Then
                If mi.MemberType = MemberTypes.Property Then
                    s &= mi.Name & vbCrLf
                End If
            End If
        Next
    Next

    MessageBox.Show(s)

End Sub

Basically, I created a new instance of frmObject from another form, set its
Tag property equal to an object, then load the form.  This code just
displays all of the properties of that object.

But therein lies the problem.  I don't just need the properties of that
object, but also of the object it inherits (all the way back to the base
object)  as well.  How can I change the code to do this?

Thanks again,

Jason

Show quoteHide quote

You're loading a lot of unneccesary metadata here for types and
members that you're not interested in. A simpler way would be

For Each mi As MemberInfo In Me.Tag.GetType().GetProperties()
    s &= mi.Name & vbCrLf
Next


You should see them as well. GetProperties (and GetMethods) by default
return all the properties in the inheritance hierarchy, unless you
specify BindingFlags.DeclaredOnly.


Mattias

by default, public or private?
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