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  • c#分页代码

            /// <summary> 
            /// 分页函数 
            /// </summary> 
            /// <param name="rowsCount">总记录数</param> 
            /// <param name="pageSize">每页记录数</param> 
            /// <param name="currentPage">当前页数</param> 
            /// <param name="url">Url参数</param> 
            /// <returns></returns> 
            public string Pagination(int rowsCount, int pageSize, int currentPage, string url)
            {
                int allCurrentPage = 0;
    
                if (currentPage < 1)
                {
                    currentPage = 1;
                }
    
                //计算总页数 
                if (pageSize != 0)
                {
                    allCurrentPage = (rowsCount / pageSize);
                    allCurrentPage = ((rowsCount % pageSize) != 0 ? allCurrentPage + 1 : allCurrentPage);
                    allCurrentPage = (allCurrentPage == 0 ? 1 : allCurrentPage);
                }
    
                int next = currentPage + 1;
                int pre = currentPage - 1;
                int startCount = (currentPage + 5) > allCurrentPage ? allCurrentPage - 9 : currentPage - 4;
    
                //中间页终止序号 
                int endcount = currentPage < 5 ? 10 : currentPage + 5;
    
                //为了避免输出的时候产生负数,设置如果小于1就从序号1开始 
                if (startCount < 1)
                {
                    startCount = 1;
                }
    
                //页码+5的可能性就会产生最终输出序号大于总页码,那么就要将其控制在页码数之内 
                if (allCurrentPage < endcount)
                {
                    endcount = allCurrentPage;
                }
    
                string currentPageStr = "" + allCurrentPage + "";
    
                currentPageStr += currentPage > 1 ? "<a href="" + url + "?page=1">首页</a>  <a href="" + url + "?page=" + pre + "">上一页</a>" : "首页 上一页";
    
                //中间页处理,这个增加时间复杂度,减小空间复杂度 
                for (int i = startCount; i <= endcount; i++)
                {
                    currentPageStr += currentPage == i ? "  <font color="#ff0000">" + i + "</font>" : "  <a href="" + url + "?page=" + i + "">" + i + "</a>";
                }
    
                currentPageStr += currentPage != allCurrentPage ? "  <a href="" + url + "?page=" + next + "">下一页</a>  <a href="" + url + "?page=" + allCurrentPage + "">末页</a>" : " 下一页 末页";
                return currentPageStr;
            }
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  • 原文地址:https://www.cnblogs.com/wzh13681626019/p/3151880.html
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