Entity framework getting IDs for multiple insert in foreach - entity-framework

Question

When we insert multiple rows at the same time with Entity framework it's good to add these objects one by one and then commit in the end, instead of adding and comitting each time.
So in that case, how do I get IDs for those insertions?
Example:
foreach (var item in list)
{
Subscription subscription = new Subscription();
subscription.Amount = item.ItemTotal;
this.ClientRepositories.LiveData.AddToSubscriptions(subscription);
// LiveData is db context via webservice proxy
// how to get IDS of these insertions if you do not commit each time?
int id = subscription.Id;
someOtherOperation(id); //i need to insert ID for each row that was inserted
}
this.ClientRepositories.LiveData.SaveChanges();
If I use commit inside for each time it adds new object I can easily get the latest inserted ID, but its not good to commit each time for multiple rows I heard.

Answer 1

I'm assuming that you are using auto incremented id's. I think your going to have to keep a list of your subscription objects outside of your loop. During each loop iteration, add the current subscription to the list. After your execute 'SaveChanges();' The subscription id's will be automatically added.
Would look like this:
List<Subscription> subList = new List<Subscription>();
foreach (var item in list)
{
Subscription subscription = new Subscription();
subscription.Amount = item.ItemTotal;
this.ClientRepositories.LiveData.AddToSubscriptions(subscription);
subList.add(subscription);
}
this.ClientRepositories.LiveData.SaveChanges();
/* At this point, each Subscription in your 'subList' should have an id */