Assign handler to click event for column (gdf, gtable)
Description
Assign handler to click event for column (gdf, gtable)
Usage
addHandlerColumnClicked(x, ...)
Arguments
x
the object
...
Used to pass through handler, and action
values. The handler is a function whose first argument is a list
that contains components obj to return the object and
action, holding the action value, and possibly others.