Tom,

>I have 2 forms based on CBizObjMaintenanceForm. When I made the change from cdmm2.07 to cbmm3.01 I began getting an error #1924 in cnavbuttons.refresh() when entering form A.
>
>ACTIVEFORM is not an object
>
>SET DATASESSION TO _SCREEN.ActiveForm.DataSessionID
>
>I solved this by changing it to
>
>IF NOT TYPE('_SCREEN.ActiveForm.DataSessionID') = 'U'
> SET DATASESSION TO _SCREEN.ActiveForm.DataSessionID
>ENDIF
>
>Now I will say that I did not do this with screen B. Screen A begins by calling aCBbaseModalForm in its INIT method so that I can retrieve view parameters. Things seem fine, but I thought I would ask.

Calling a modal form from another form's Init() is somewhat unusual...normally, by definition, CNavToolbar does not exist unless there is an ActiveForm. It seems that your technique is throwing a bit of a curve at just the right (or wrong <s>) time for CNavToolbar.

However, if there is no ActiveForm and the correct Data Session is not being set, there isn't much value in executing cnavbuttons.refresh().

At any rate, this bears further investigation. I'll check into this further and let you know what I discover.

Regards,