I cannot modify a datetime column in the dw painter to accept a format or
editmask using:
editmask - [date] HH:mm:ss
format - [shortdate] HH:mm:ss.

I want to use the regional setting for the date but I want to hard-code the
time format. What happens is the date displays properly but the time
portion appends the fractional seconds ":000" on the end of the time.

I want to avoid having to set all of these manually in code if I possibly