Check if there are any pending changes to be saved

Question

Is there a way to find out whether there are unsaved changes in my entity context, in the Entity Framework?

Answer 1

Starting with EF 6, there is context.ChangeTracker.HasChanges().

Answer 2

This might work (if by changes you mean added, removed and modified entities):

bool changesMade = (context.ObjectStateManager.GetObjectStateEntries(EntityState.Added).Count() +                     context.ObjectStateManager.GetObjectStateEntries(EntityState.Deleted).Count() +                     context.ObjectStateManager.GetObjectStateEntries(EntityState.Modified).Count()                     ) > 0; 

Edit:

Improved code:

bool changesMade = context.                    ObjectStateManager.                    GetObjectStateEntries(EntityState.Added |                                           EntityState.Deleted |                                           EntityState.Modified                                         ).Any();