第一种：

jqGrid随窗口大小变化自适应宽度

复制代码代码如下:

$(function(){

$(window).resize(function(){

$("#listId").setGridWidth($(window).width());

});

});

第二种：

复制代码代码如下:

window.onresize = function _doResize() {

var ss = pageSize();

$("#listId").jqGrid('setGridWidth', ss.WinW-10).jqGrid('setGridHeight', ss.WinH-200);

}

function pageSize() {

var winW, winH;

if(window.innerHeight) {// all except IE

winW = window.innerWidth;

winH = window.innerHeight;

} else if (document.documentElement && document.documentElement.clientHeight) {// IE 6 Strict Mode

winW = document.documentElement.clientWidth;

winH = document.documentElement.clientHeight;

} else if (document.body) { // other

winW = document.body.clientWidth;

winH = document.body.clientHeight;

} // for small pages with total size less then the viewport

return {WinW:winW, WinH:winH};

}