[IronPython] cast to different interface

[Christoph]

Hello,

i'm trying to use serveral interfaces of one object.

The solution mentioned here earlier don't work for porperties:

Problem:
dgv = System.Windows.Forms.DataGridView()
dgv.BeginInit()

Solution:
System.ComponentModel.ISupportInitialize.BeginInit(dgv)


How can i use this solution for properties?

Greetings
Christoph