There seems to a massive performance gap between v2.0.4 and newer version of the free gird v2.1.0 & v2.2.0 when it comes to selecting up to 1000 rows via the selectAll checkbox.
Easiest way to show and demo this is via this demo;
https://paramquery.com/demos/selection_checkbox- copy and paste the data so they are at least 1000 rows
- set pageModel: {type:"local", rPP:1000 }, - to display 1000 rows by default
- set flexHeight:false, - makes it easier to view the grid, makes no difference to this demo if true or false
selectAll on checkbox in the header and it takes roughly about 11-12 seconds (tested on a i5-5275u, 8gb ram and i7 with 32gb ram - times are roughly the same). The action completes eventually after 12 seconds in Chrome. Firefox and IE will give an script error as it's been running too long;
I've run the same test on v2.1.0 and v2.2.0 and get the same results.
The same test on v2.0.4 doesn't have this performance lag - the selectAll is pretty much instant.
Any fix for this?
