InvalidOperationException when calling SaveChanges in .NET Entity framework

Question

I\'m trying to learn how to use the Entity framework but I\'ve hit an issue I can\'t solve. What I\'m doing is that I\'m walking through a list of Movies that I have and ins

Answer 1

last time I tried the following code and I said it is working fine

bs.SuspendBinding();
Data.SaveChanges();
bs.ResumeBinding();

The important things which I wana tell you today are that:

1- if we use the above code to suspend binding we have to do more code to fix a lot of scenarios like index lost in the collections and the master detail bindings

2- if we use the following code instead of the above code we will see the exception gone and every thing will be ok where no need to write more code

        Data.SaveChanges(System.Data.Objects.SaveOptions.None);

I hope this solves your similar problems

thank you friends