How to refresh the current contents of a paged grid

You can empty the grid of any data except for column headers through the action property, like this:

modify grid-1 action = ACTION-CURRENT-PAGE

Then generate the grid's PAGED-NEXT event.

If you position a data file using the START statement before performing this action, the grid will fill the page of data starting with the record selected by the START.  There's a sample program attached.