分页代码

分页样式如下：

分页效果

public class Qtpager
{
    /// <summary>
    /// 分页代码
    /// </summary>
    /// <param name="pagesize">每页显示条数</param>
    /// <param name="currentpage">当前页码</param>
    /// <param name="totalcount">数据总条数</param>
    /// <returns></returns>
    public static string ShowPage(int pagesize, int currentpage,int totalcount)
    {
        pagesize = pagesize <= 0 ? 15 : pagesize;//默认每页15条数据
        var totalpage = Math.Max((totalcount + pagesize - 1)/pagesize, 1);//总页数
        var output = new StringBuilder();

        if (totalpage <= 10)//总页数小于10,按页码全部显示
        {
            if (currentpage > totalpage)
            {
                output.AppendFormat("<a href='?page={0}' class='current'>{0}</a>", 1);
            }
            else
            {
                output.AppendFormat("<a href='?page={0}'>{0}</a>", 1);
            }
            for (int i = 2; i <= totalpage; i++)
            {
                if (i == currentpage)
                {
                    output.AppendFormat("<a href='?page={0}' class='current'>{0}</a>", i);
                }
                else
                {
                    output.AppendFormat("<a href='?page={0}'>{0}</a>", i);
                }
            }
        }
        else//总页数大于10,显示当前页的前后三页、首页、最后一页
        {
            if(currentpage<=3)
            {
                for (int i = 1; i < currentpage; i++)
                {
                    output.AppendFormat("<a href='?page={0}'>{0}</a>", i);
                }
                output.AppendFormat("<a href='?page={0}' class='current'>{0}</a>", currentpage);
            }
            else
            {
                output.Append("<a href='?page=1'>1</a>");
                output.Append("...");
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage - 3);
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage - 2);
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage - 1);
                output.AppendFormat("<a href='?page={0}' class='current'>{0}</a>", currentpage);
            }
            if (totalpage - currentpage > 3)
            {
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage + 1);
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage + 2);
                output.AppendFormat("<a href='?page={0}'>{0}</a>", currentpage + 3);
                output.Append("...");
                output.AppendFormat("<a href='?page={0}'>{0}</a>", totalpage);
            }
            else
            {
                for (int i = currentpage + 1; i <= totalpage; i++)
                {
                    output.AppendFormat("<a href='?page={0}'>{0}</a>", i);
                }
            }
        }
        return output.ToString();
    }
}

前台代码：

<div class="pageNav">
            <div class="pagelist">
                <a href="?page=1">1</a>...<a href="?page=3">3</a><a href="?page=4">4</a><a href="?page=5">5</a><a href="?page=6" class="current">6</a><a href="?page=7">7</a><a href="?page=8">8</a><a href="?page=9">9</a>...<a href="?page=20">20</a>
            </div>
        </div>

样式表：

    .pageNav{height:40px;margin:50px auto 20px auto; width:500px; clear:both; text-align:center}
    .pagelist {text-align:center; font-size:14px}
    .pagelist a{padding:3px 6px; margin:2px;text-decoration:none; color:#777}
    .pagelist a:hover,.pagelist a.current{background-color:#ec6d1e;color: #fff !important;border-radius: 5px;}
    .pagelist a:active{color:#000}
    .pagelist span.disabled{padding:3px 6px}