Column binding to Datagrid in wpf C# using EF

Hi ,

 

I am trying to bind a column to the existing DataGrid that is already binded automatically in Entity Framework.

On window_load I need to show one additional column calculated through LINQ query. So basically I would get IQueryable , which I convert into list. Now my issue is, I am stuck in binding this column to the DataGrid. My implementation works fine in wpf c#, but I am trying to implement the same in EF and I am stuck.  Request the procedure or clues to follow. I need to know how to bind the list column to existing Datagrid.