自定义后台分页（1）

        /// <summary>
        /// 自定义后台分页
        /// </summary>
        /// <param name="PageName">Url地址</param>
        /// <param name="PageExt">带参数</param>
        /// <param name="count">总数</param>
        /// <param name="page">当前页面</param>
        /// <param name="pagesize">每页显示多少条</param>
        /// <returns></returns>
        public static string GetPageUrl(string PageName, string PageExt, int count, int page, int pagesize)
        {
            string pageNumText = "pageNumText_" + new Random().Next(0, 100) + "_" + DateTime.Now.ToString("yyyyMMddHHmmss");
            int pagecount = 0;
            if (count % pagesize == 0)
                pagecount = count / pagesize;
            else
                pagecount = count / pagesize + 1;
            StringBuilder url = new StringBuilder("");
            if (pagecount > 1)
            {
                url.Append("<div class="manu"><div id="AspNetPager1">");
                url.Append("<div class="apl">第" + page + "页/总" + pagecount + "页 [每页" + pagesize + "条/共" + count + "条记录]");
                url.AppendFormat("<span><input id='{1}' type='text' value='{0}' class='pageNumText' style='30px;' />", page, pageNumText);
                url.AppendFormat("<input type='button' value='go' class='gopagebtn' onclick='(function(){{window.location.href ="{0}?page="+document.getElementById("{2}").value+"{1}";}})()' /></span>", PageName, PageExt, pageNumText);
                url.Append("</div><div class='apr'>");
                if (page > 1)
                {
                    url.Append("<span class="span1"><a href="" + PageName + "?page=1" + PageExt + "" style="margin-right:5px;">首页</a></span>");
                    url.Append("<span class="span1"><a href="" + PageName + "?page=" + (page - 1) + PageExt + "" style="margin-right:5px;"><上一页</a></span>");
                }
                else
                {
                    url.Append("<span class="span1"><a disabled="true" style="margin-right:5px;">首页</a></span>");
                }
                int min = 0, max = 0;

                min = page - 5;
                if (min < 1) min = 1;

                max = page + 5;
                if (max < 10) max = 10;
                if (max > pagecount) max = pagecount;
                for (int i = min; i <= max; i++)
                {
                    if (i == page)
                    {
                        url.Append("<span class="span0">" + i + "</span>");
                    }
                    else
                    {
                        url.Append("<span class="span1"><a href="" + PageName + "?page=" + i + PageExt + "" style="margin-right:5px;">" + i + "</a></span>");
                    }
                }
                if (page < pagecount)
                {
                    url.Append("<span class="span1"><a href="" + PageName + "?page=" + (page + 1) + PageExt + "" style="margin-right:5px;">下一页></a></span>");
                    url.Append("<span class="span1"><a href="" + PageName + "?page=" + pagecount + PageExt + "" style="margin-right:5px;">尾页</a></span>");
                }
                url.Append("</div></div></div>
");//</td></tr></table>
            }

            return url.ToString();
        }

实例
string url="Default.aspx";
string pageEx = "&key=" + key + "&name=" + name + "&class0=" + class0 + "；
int page=1;
int pagesize=5;

GetPageUrl(url, pageEx, count, page, pagesize)