asp.net中viewState的应用(3)

        public void BindGridView(String cnum,String name)
        {
            IEnumerable<M_Student> models = BLL.M_StudentBLL.ReadStuByCollegeAndName(cnum, name);
            if (null != models && 0 != models.Count())
            {
                // 起始条数
                int startRecord = AspNetPager1.PageSize * (AspNetPager1.CurrentPageIndex - 1);

                // 每页数目
                int maxRecords = AspNetPager1.PageSize;

                // 总数目
                this.AspNetPager1.RecordCount = models.Count();
                this.AspNetPager1.AlwaysShow = true;
                this.GridView1.DataSource = models.Skip(startRecord).Take(maxRecords);
                this.GridView1.DataBind();
            }
            else
            {
                this.GridView1.DataSource = null;
                this.GridView1.DataBind();
            }
        }

        public void Bind()
        {
            if (null == ViewState["num"])
            {
                ViewState["num"] = "";
            }

            if (null == ViewState["name"])
            {
                ViewState["name"] = "";