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| Note |
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Care must be taken if interacting with the User Interface within handlers of business logic objects added from the Setup method of the BusinessLogicPlugin class. You must not assume there is a user to respond to or dismiss message boxes or dialogs - events may be raised from services such as the REST API which are using the business logic. User interaction should be performed in the FormPlugin class, which is guaranteed a user interface - add the handlers to business logic events there, not in the BusinessLogicPlugin class. |
Common Mistakes
Some of the more common mistakes which can cause significant issues are:
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An entire organisation can be ground to a halt by displaying a messagebox or dialog at the wrong time.
If a plugin is awaiting user interaction and there are un-committed transactions pending, then other users will be blocked from reading or writing to the same tables or pages of the database.
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