These are Delphi DB Grids right?
Do you have debug info in the compiled exe?
With debug info (which you pretty much need with these as there are a LOT of native methods and properties you won't get without it) I'm using a method called "DoTiTleButtonClick(<field-name>)" which works perfectly for me with all the various types of Delphi DB Grid (TDBGrid & TwwDBGrid .... off the top of my head).
But for that to work, you need the <field-name> of the column in question. Which is not necessarily the same as the column header. You need to check the underlying dataset object for that.
