'EditItem' is not allowed for this view - databinding issue

Question

I am trying to do data binding in WPF on data grid using a cutom list. My custom list class contains a private data list of type List. I can not expose this list however the

Answer 1

though I am not fully understand your requirement, do you think using an ObservableCollection will solve your issue?

public abstract class TestElementList : ObservableCollection
    where T : class
 {
   public virtual T Get(int index)
   {
     T item = this[index];
     return item;
   }

   public virtual void Set(int index, T item)
   {
     this[index] = item;
   }
 ...
}