It can be. Use this hack before calling jqGrid.

JS code:

jQuery(“#mygrid”).width(“99%”);
var w = jQuery(“#mygrid”).width();

jQuery(“#mygrid”).jqGrid({

…

width: w

…

});

One problem though, this ofcourse won't autoresize :/

So is there any other way to make it resizable other than reloading the entire form on every width change?

Basically I want a full-window popup form that would always fill the entire screen.

If not, I will delve into the jqGrid code and try to add this myself. That's why I was wondering how come you haven't done it already: are there any problems that are preventing you from just setting the wrapper to percentage width, or you just haven't gotten around to it yet?

This is a dead end. I don't understand grid.base.js one bit

I guess I'll just put another wrapper around it for horizontal scrolling and make the columns non-resizable (so I don't have two horizontal scrollbars).