Devart Forums

I am trying to create an application that uses the TCRDBGrid to insert records in a table - this is working very nicely, but when inserting a record that violates a index for unique values I can't figure out how to catch the error and cancel the insert.
The problem is the same if I try to insert a record that doesn't have all the needed data - how do I catch this.

I have been looking at all the samples found with the UniDAC demo, but with no luck. So a detailed description would be very nice.

There is no way to do this directly.

You can try to use the TApplicationEvents component and OnException event. In the event handler you can check the exception message.