beforeColumnDrag

fires before dragging of a column has started

boolean beforeColumnDrag(object data,Event e){ ... };

data	object	data object
e	Event	a native event object

boolean

false - to prevent dragging a column, otherwise true

Available only in PRO Edition

grid.events.on("BeforeColumnDrag", function(data, events){
    // your logic here
    return false;
});

Details

This functionality requires PRO version of the dhtmlxGrid (or DHTMLX suite) package.

The data object contains the following parameters:

start	(string) the id of a column, from which the dragging process has started
source	(string[]) an array with ids of dragged columns
target	(string) the id of a potential target column