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    <p>I will add my trial and error to your research in case it's of any value.<br> <img src="https://i.stack.imgur.com/PRw0P.gif" alt="TMS AdvStringGrid">. Here is an image of a TMS AdvStringGrid. I think it is largely based on an ordinary string grid with a lot of useful extensions. To make it easier to count rows, I magnified the image using SnagIt and made the pixel gridlines visible. I added some red lines to the top row of the grid. On this grid, the DefaultRowHeight is set to 21. Between the red lines, there are 5 pixels each so to get 21 pixels for the DefaultRowHeight you would have to include the stringgrid gridline which has a height of 1 pixel. When I load this grid, I use this code:</p> <pre><code>with gridLimits do begin RowCount := 3; Cells[0, 0] := 'Maximum Amount'; Cells[0, 1] := 'Maximum Base'; Cells[0, 2] := 'Maximum Period'; IntegralHeight := False; MyHeight := 0; for i := 0 to RowCount - 1 do inc(MyHeight, RowHeights[i]); Height := MyHeight + 5; end; end; </code></pre> <p>I captured the grid using SnagIt and let it capture an object on the screen. It included the 1 pixel grey line around the grid. The grid actually seems to visibly start at the blue line, so to get the height, I would think I would need to add the DefaultRowHeight times three plus the top blue line plus the bottom blue line, but if I do that and click on the bottom row, the grid scrolls up. It also scrolls up if I add 3 to the height. If I add 4 to the height, it does not scroll. I don't know why I set it on 5 and I will set it to 4 now because you can see that there is 1 pixel too much at the bottom.</p> <p>It may be that the top and bottom grey lines should be added to get the total height of the grid and that is why it is the DefaultRowHeight times 3 plus the top and bottom lines plus two more for the grey lines that SnagIt included.</p>
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