Detect Duplicate Records in Continuous Forms

[biganthony via AccessMonster.com]

Hi,

How do you go about creating your own error message when a duplicate record
is entered by the user into a continuous form that has a composite primary
key (two fields)?

I have searched and seen that some code can be written and placed in the
BeforeUpdate event of the form.

Is it the same process with continuous forms?

Anthony

 

[biganthony via AccessMonster.com]

With reference to my question above, I would like to replace the Access error
message that is generated with my own message.