gtransaction | A Go Database Trasnaction Managemnet Lib | Database library

I have a GridView that has its DataSource set to BindingSource, which in turn has its Datasource property set to a custom IEnumerable variable. This custom object comes from Entity Framework's Data context. When I try to modify values from GridView I get an error 'The ObjectContext instance has been disposed and can no longer be used for operations that require a connection error'. This is understandable since I do these modifications when my data context is already disposed but is there a way to just store these changes in the IEnumerable variable and disable it's 'binding' to that disposed data context?

Edit: To simplify, If I declare a new List and set it as a DataSource to the upper mentioned BindingSource, then when updating the rows from GridView, I can see the changes propagated to this List object. But how to do the same when this object is a result of several queries in Data context of Entity Framework which seems to be 'attaching' some kind of remnant to the resulting object.

Here is the relevant code: