I have a grid with 3 columns: Text, Text, Tree.
On start I fill the grid with dummy rows and all works.
If I try to set Visible = FALSE for only a Text columns all works but if I try to set Visible = FALSE all Text columns the grid have problem: the expand/collapse button of Tree column doens't work any more besides if I try to select a row the image, the text and expand/collapse button are hide.
Besides I think there is a draw error becuase the child image must be under the text of parent, see Delphi tree:
The last thing, is there a way to collapse/expand row tree?