Concatenation

Content within [EventType] is 'Regular'.
Content within [JDate] is '01/01/2023 19:00' I want to convert that to yymmddhh or '23010119'
Then I need to Concatenate the two fields together this way.
First 3 characters within EventType
The single Character '-'
The converted [Jdate] 23010119
Final date stored = Reg-23010119.  This would be used to link Database reports to other support files
Then I want to store that into the [DocFineName] form field so that it would be stored in table when form is closed.
I'm just beginning to use VBA.  I've been working on this for a few days and am missing something.  
Thanks for any help.  

You can do something similar to this:
Dim docName as string

docName = cboEventType.Column(1) & "-" & Format(JDate, "yymmddhh")
DocFileName = docName

Obviously make modifications to suit your needs.

See these videos for further help:
Intro to VBA
Concatenation
Format

Thanks that was Great.