On row navigation using Up key through dthmlxGrid it gets JS

On row navigation using Up key through dthmlxGrid it gets JS error when reaches the first row and



FF:

Error: nrow has no properties

Source File: pccmd.com:8173/class/dhtmlX/dhtm … mlxgrid.js

Line: 1371



IE:

Line: 1372

Char: 7

Error: ‘_sRow’ is null or not an object



When you use the Down key and reaches the last row - it is ok



Probably is not checked a limit ?

Problem confirmed and fixed
You can contact us at support@dhtmlx.com - I will send back fixed version of grid, or just made next small modification in code of dhtmlxgrid.js

locate
k38_0_0:function(){   
    …
    if (nrow._sRow || nrow._rLoad) return false;

and replace with

    if (!nrow || nrow._sRow || nrow._rLoad) return false;