DBGrid and TTable - RecordCount


I tried to find a fast way to show data in a dbgrid with the methode
setrange. It is very fast - but the really problem is to know how many
records I've selected. When there is just one left I would like useing
then enter-key to go back with just this record. I couldn't find a
mthode or a property with the the record-count still now.

Is there anyone how knows what I am talking about?