Class: TEgFireGridColumn
property OnCellImageClick: TEgFireGridCellEvent;The column’s own OnCellImageClick:
it occurs for the same things, with the same parameters, but only for
this column, right after the grid’s OnCellImageClick
handler (if any). Sender is the grid. See the grid’s event
for when it occurs and what the parameters mean.
Assigning one handler to the grid’s event serves every column; the column’s event suits a behaviour that belongs to one column, and travels with it when the column is copied or moved.