Dart Support Forum|PowerTCP Mail for .NET|Collection was modified; enumeration operation may not execute.

Author	Forum: PowerTCP Mail for .NET Topic: Collection was modified; enumeration operation may not execute.
tbeaulieu From: Waltham, MA USA Posts: 4 Member Since: 06/04/08	posted June 23, 2008 1:28 PM Has anyone dealt with this condition while enumerating and processing messages in a folder? It happens when a message is added to the folder during enumeration. I need to figure out a workaround that eliminates the need to restart the enumeration when this error happens, because it's too slow to fetch all the attachments again. Is there a way to fetch a list of headers to then drive subsequent fetches (Get()) bases on that collection? I don't mind if I miss messages added after the initial cache. Thanks.
tbeaulieu From: Waltham, MA USA Posts: 4 Member Since: 06/04/08	posted June 25, 2008 8:32 AM I resolved this problem by caching a collection of mail headers - the set returned from Get() - and then fetching each message in full, driven by that cache set. Looking back, had I driven my initial loop of the return set, instead of directly off the folder, this problem may have been avoided. Regardless, I like this approach better because each message is returned as it's processed, instead of all in one really long transaction up front.

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