How to access parent form control from Wpf hosting element

Question

1. Application in C# winform
2. Wpf element hosted in usercontrol 
3. I want to set label on parent form on which wpf element is hosted.
4. I tried through constructor but is not possible yet.
5. I also made properties for this label and accessed in wpf code but not possible 
Please anyone suggest me proper solution

Answer 1

Thanx amit for sharing.........