beforeSort
fires before a column is sorted by clicking on its header
beforeSort: (column: object, dir: string) => void | boolean;
Parameters:
The callback of the event is called with the following parameters:
- column: object- an object with the configuration of a column
- dir: string- the sorting direction ("desc", "asc")
Returns:
Return false to prevent a column from being sorted; otherwise, true.
Example
grid.events.on("beforeSort", (column, dir) => {
    // your logic here
    // return false;
});
Change log:
added in v7.1