Question

I’m doing a massive import, and only doing a .SubmitChanges() only 1,000 records.

Example:

var targetRecord = new Data.User() { FirstName = sourceRecord.FirstName };
db.Users.InsertOnSubmit(record);

The above is in a loop, for each record from the source database. Then, later…

if (i % 1000 == 0) { db.SubmitChanges(); }

The problem is, the collection of items to be inserted keeps getting bigger and bigger, when I want to clear them out after each SubmitChanges();

What I’m looking for:

if (i % 1000 == 0) { db.SubmitChanges(); db.Dispose_InsertOnSubmit_Records(); }

Something like that. I could alternatively have a list of data records stored in a local variable that I continually re-instantiate after submitting changes, but, that’s more code.

Hopefully this makes sense. Thanks!

Answer 1

You can intialize a new DataContext after each SubmitChanges. I’m not sure of the performance implications, but I’ve done something similar in the past without any problems.

The only other solution I’ve seen is iterating through your changes and reverting them. It seems like the former would be a much more efficient method.