鼠标滚动，自动加载数据

一、手动点击加载：

    <div class="coursecontent clearfix" id="divContent">
    </div>
    <input type="button" value="next" onclick="getPage(false)" />

        @*$(document).ready(function () {
            getPage(true);
        });

        //******************************************************分页用到 开始
        var limit = 10;
        var offset = 0;
        var order = "createdate";
        var isAsc = false;

        function getPage(isFirst) {
            if (isFirst) {
                limit = 10;
                offset = 0;
            }
            else {
                offset += limit;
            }
            $.get("@Url.Action("List", "Library")", { limit: limit, offset: offset, order: order, isAsc: isAsc },
            function (data) {
                if (isFirst) {
                    $("#divContent").html(data);
                }
                else {
                    $("#divContent").append(data);
                }
            });
        }
        //******************************************************分页用到 结束*@

 二、自动加载：

<div class="coursecontent clearfix" id="divContent">
    </div>

        var limit = 50;
        var offset = 0;
        var order = "createdate";
        var isAsc = false;

        $(document).ready(function () {
            //第一次加载
            loadMore(true);

            //滚动时加载
            $(window).scroll(function () {
                //当滚动到最底部以上1像素时，加载新内容
                if ($(document).height() - $(this).scrollTop() - $(this).height() < 1) {
                    loadMore(false);
                }
            });
        });

        function loadMore(isFirst) {

            if (isFirst) {
                offset = 0;
            }
            else {
                offset += limit;
            }

            $.ajax({
                url: '/library/list',
                method: "get",
                dataType: 'text',
                data: { limit: limit, offset: offset, order: order, isAsc: isAsc },
                success: function (data) {
                    if (isFirst) {
                        $("#divContent").html(data);
                    }
                    else {
                        $("#divContent").append(data);
                    }
                }
            });
        }