Really annoying error with Microsoft Office Access
Access provides a number of error messages, but many are confusing to the users. I find it sometimes useful to replace the system error messages with custom error messages. The Null primary key is a case in point.
When I try to leave a record on a form without a primary key value, the form will display the following error message. I am very upset how to resolve this issue? Help me to resolve this problem. Thanks.
Error Message: Index or primary key cannot contain a null value.