I suggest to use:

Set Key to Range 'StartRange', 'EndRange'

or:

Set Filter to KeyField > 'StartRange' .And. KeyField < 'EndRange'
but you need to reset the above setting when leave Form!

Another suggestion is to make a R/w cursor, alter the Temp DBF() and
add an Update Trigger to corresponding update the Original Table!
but it will become a big task! >:0

Finally, try to download my bwtable.zip in file section and take a look some
code!

I did similar thing but Set Field to on Selecting needed Field in show!
It will certainly give an idea to you! (currently, it has some bugs on it...)
+_+'

---

>All the advice is now consistent. Don't use Browse, use Grids instead. Fine, but...
>
>...how do we apply the equivalent of a 'browse key' command in a grid. This is one of the most useful features of the browse command as, if data is indexed on the key, it is thousands of times faster browsing to a key than setting up a filter. But I can't see any 'key' property or method through which to assign the key value to the grid...
>
>Anyone got an answer?
>
>Harry