具体怎么使用----好像没啥效果啊

$(window).resize(function(){
  $('#gridPager').datagrid('resize', {
  width:function(){return document.body.clientWidth;},
  height:function(){return document.body.clientHeight;},
  });
});

clientWidth ？
clientHeight ？

JScript code

function getScreenSize()
{
    var theWidth,theHeight;
    if (window.innerWidth) 
    { 
        theWidth = window.innerWidth 
        theHeight = window.innerHeight 
    } 
    else if (document.compatMode=='CSS1Compat') 
    { 
        theWidth = document.documentElement.clientWidth 
        theHeight = document.documentElement.clientHeight 
    } 
    else if (document.body) 
    { 
        theWidth = document.body.clientWidth 
        theHeight = document.body.clientHeight 
    } 
    var result = [theWidth,theHeight];
    return result;
}

var array =  getScreenSize()
//高:array[1]
//宽:array[0]

修改计算方式