geAddInstProbe is not Working properly

 Hi All,

With below code I am planning to hilight the instances which are connected to selected net in my dialog box when I press hilight. But It is not hilighting when I press hilight in my dialog box. It is hilighting after clicking any instance in my schematic. Please see screenshot.

 bulks=("<*24>VSSA" "<*8>VBG_NEW_VSSA" "VBG_NEW_VSSA" "VDDA" "VS1"
    "VSSA"
)

bulks = sort( bulk 'alphalessp )
 bulks1 = hiCreateListBoxField(
 ?name 'bulks1
 ?prompt "Bulks"
 ?choices bulks
 )
hilight = hiCreateButton(
 ?name  'Hilight
 ?callback "calback()"
 ?buttonText "Hilight")
CSVbulk = hiCreateAppForm(
          ?name 'CSVbulk
          ?formTitle "Bulk Hilghter"
          ?formType 'nonoptions

          ?fields list(list(bulks1 10:20 150:150 50)
 list(hilight 100:180 200:30 100))
)
hiDisplayForm(CSVbulk) )

probe=nil names=nil

procedure(calback()

;geDeleteInstProbe(geGetEditCellViewWindow(cv) )
 ; geDeleteProbe(geGetEditCellViewWindow(cv) probe)
   netname=car(CSVbulk~>bulks1~>value)
    foreach(instance cv~>instances
     foreach(Netname  instance~>instTerms~>net~>name
      InstanceName= instance~>name
       if(Netname==netname
        then
        names=cons( InstanceName names)

           )
            )
             )
kk=geGetCellViewWindow(cv)
printf("came")
foreach(name names
probe=geAddInstProbe(geGetCellViewWindow(cv) list( "y0" "drawing") name))

              )

Thank you,

Chandaka