error handling - Using the find method in excel -


i struggling figure out how figure out if search string not found in excel, tried 

isnothing(rfoundcell)

but not work, says method can not found

and iserror not work

   rcount = settings.rowheadertempfile + 1 lrow2     set rfoundcell = range("a" & settings.rowheader + 1)     set rfoundcell = ws.columns(1).find(what:=ws2.cells(rcount,                      partnumberws2).value, after:=rfoundcell,                       lookin:=xlvalues, lookat:=xlpart,                       searchorder:=xlbyrows, searchdirection:=xlnext,                      matchcase:=false)      if iserror(rfoundcell.row) ' fails here         lrow = lrow + 1

since rfoundcell nothing doesn't have .row property.
if rfoundcell nothing seems more convenient handling, in real life situations wouldn't use handling, dependent procedure should based on if not rfoundcell nothing then criterium.

for rcount = settings.rowheadertempfile + 1 lrow2     set rfoundcell = range("a" & settings.rowheader + 1)     set rfoundcell = ws.columns(1).find(what:=ws2.cells(rcount,                      partnumberws2).value, after:=rfoundcell,                       lookin:=xlvalues, lookat:=xlpart,                       searchorder:=xlbyrows, searchdirection:=xlnext,                      matchcase:=false) if not rfoundcell nothing     'do stuff else     lrow = lrow + 1 end if

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