SqlBulkCopy.WriteToServer() keep getting “connection is closed”

Question

This makes no sense to me but maybe someone with keener eyes can spot the problem.

I have a Windows service that uses FileSystemWatcher. It processes some files and upl

Answer 1

Looks like an issue with it being Async.

Please let me know if I wrong, but what I noticed is you have your SqlBulkCopy and ObjectReader in a using statement which is great, however, you are doing all the processing asynchronously. Once, you call it and it starts doing work, your using statements are disposing of your objects which will also kill your connection.

The odd thing is that it sounds like it works sometimes, but perhaps it just becomes a race condition at that point.