当我打开一个窗口时我手动去load数据        ArticleLearningstore.load({
            params:{
                start:0,
                limit:pageSize,
                courID:CourseSelectID
            }
        }); 这样得到的数据是正确的,但是当我点grid面板上的刷新键按理来说应该是默认load我的数据源但是我通过DEBUG发现数据中courID:CourseSelectID
它并没有上来
后来我做了这么一个测试        proxy:new Ext.data.HttpProxy(
        {
            url:"DATA/Course/ArticleLearning/ArticleLearning.aspx?_dt=" + new Date().getTime() + "&courID=" + CourseSelectID,
            method:"POST",
            params:{
                start:0,
                limit:pageSize,
                courID:CourseSelectID
            }
        }),问题来了,我分别接收2个courID结果是params没接到而URL里的却接到了Request.Form['courID']
Request.QueryString['courID']求解释...