The grid style will display each row of your view within a grid. You may customize the number of columns, though it defaults to 4. A grid looks like this:
| row 1 | row 2 | row 3 | row 4 |
| row 5 | row 6 | row 7 | row 8 |
| row 9 | row 10 | row 11 | row 12 |
| row 13 | row 14 | row 15 | row 16 |
The above uses the 'horizontal' alignment, where rows are added into the grid from left to right.
With a vertical alignment, rows will be placed from top to bottom, like this:
| row 1 | row 5 | row 9 | row 13 |
| row 2 | row 6 | row 10 | row 14 |
| row 3 | row 7 | row 11 | row 15 |
| row 4 | row 8 | row 12 | row 16 |
This style uses a row style to determine what each row will look like.