I want to add a custom sorting function that would sort by absolute values. Also, I do not want to disable the built-in sorting functions (by ascending and descending). Is it possible to do it via GridSettings?
P.S. Where are ascending and descending sort algorithms are stored? Is it somewhere in the
P.P.S. Found a demo with columnSortingFactory: https://jsfiddle.net/handsoncode/gf19kcwb/, is it relevant to the todays version?