binding inside windows forms control

hi,

i am facing a situation where i am using MVVM pattern in my wpf window.
there will be a xaml, codebehind and ViewModel.vb file. in xaml, i am using a windowsformhost control and there is a property child, which i need to set like Child="Binding ChildProperty". If i set like that, it will raise an error. some binding cannot be done to windows form control. is there any workaround for this. Because of this, i have write the logics in codebehind itself.

thankzzzzzzzz