VB Code:
  1. 'to change all the rows
  2.     Grid.RowHeight(-1) = 100 'or whatever your value
  3.     'to change a single row
  4.     Grid.RowHeight(1) = 500 '(1) is the row number
  5.     'to change some of the rows
  6.     For i = 1 to 10 'For ten rows
  7.         Grid.RowHeight(i) = 500
  8.     Next