Conference iosg::all-in-1_v30

38.0. "FDV$AFVA and OA$FLD_PUT confuses FMS 'memory'?" by SHALOT::LANPHEAR (Test the water or turn the tide?) Tue Feb 18 1992 18:42

    Hi,                                                              
    
      I have been working with an unusual customer request to have dynamic
    highlighting of fields on a menu form.  For example, the menu contains
    a number of display only fields, selected from a RMS data-set.  If
    particular fields meet particular criteria, they should be bold,
    reverse, etc. depending upon the condition.  I created a menu which
    calls some pre-processing (code level) to fill in the fields and then 
    select the video attributes via the FDV$AFVA routine.  This all works
    fine, except...
    
      Once I have used FDV$AFVA on a field, FMS thinks that it always has
    to repaint that field whenever I touch it again (OA$FLD_PUT), even if I
    specify the same value which is currently in the field (including blanks).
    It appears that there is some interaction between OA$FLD_PUT and FDV$AFVA 
    at the FMS level, but it escapes me.  If I create a DO script to fill in 
    the values instead of using the code level DSAB (get fld="value" vs
    OA$FLD_PUT), then these same fields are _not_ repainted if they match the
    "new" value specified...  Any ideas?  I see that OAFMS says that FMS
    V2.3 was supposed to manage field "memory" so we don't have to, but is
    there something else going on with video attributes?  (ALL-IN-1 V2.4)
    
      Thanks in advance,
    
    							Cheers, Dan'l