easily DBGrid strengthen multi-table first version TADBgrid spread of the Internet can easily control it now DBGrid multi-table heads, but its design is relatively simple, adjacent fields, the same rise can be merged, this effect will be greatly reduced, I would have to give him 90 points, on this point deduction of 89 points. I make efforts to reform it, and even floors also can be combined, but also achieve a high degree of the bottom as possible, effects DBGridEh almost the same as it is more simple, no address lines, This needs to do in memory to calculate a tree height, more complex, reference DBGridEH. Below is the realization of the code, if found to be wrong, please correct that.

KDBGrid.pas
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