GridWidth is the number of images per row. This property is active only when DisplayMode is mdGrid.
Valid GridWidth values are:
Value
Description
-1
Automatically adjust column count to match the component width (standard usage)
0
Only one row
1
A single column of thumbnails
>1
Number of columns (images per row), e.g. set to 3 for three vertical columns
Note: ◼You can center the thumbnail column(s) using ThumbnailOptionsEx ◼If AutoAdjustStyle = True, then setting Style will automatically set GridWidth ◼You can use CalcGridWidth and CalcGridHeight to determine the current display count (due to window size) ◼If ThumbWidth is auto-calculated (-1), then GridWidth must be >= 1.