Shared DateVar Formula Issue

[CappsRLO]

Crystal 8.5
Previous Formula:
If IsNull({SubmittalRegister.SubmittalRegister~DueDate}) Then 0 Else 1

In the previous formula I was using an actual field in the MAIN report. Now we want to use a Shared DateVar from a SubReport but it won't let me use it in a IsNull

New Formula:
Shared DateVar DueDateVar;
If IsNull(DueDateVar) Then 0 Else 1

Error Received: A field is required here (cursor blinking for the DueDateVar)

 

[CappsRLO]

DISREGARD - Issue Resolved

 

[lbass]

Please explain your solution so others an benefit.

-LB

 

[CappsRLO]

Correct Formula:
Shared DateVar DueDateVar;
If IsNull(@DueDateVar) Then 0 Else 1

I manually typed in 'DueDateVar' whereas if I inserted the field from the field chooser it is actually '@DueDateVar'