分页字符串帮助类

   /// <summary>
    /// 分页字符串帮助类
    /// </summary>
    public static class PageStrHelper
    {
        /// <summary>
        /// 获取分页字符串
        /// </summary>
        /// <param name="pageindex">当前页</param>
        /// <param name="pageMaxcount">最大条数</param>
        /// <param name="pageSize">每页条数</param>
        /// <returns></returns>
        public static string CreatePageStr(int pageindex, int pageMaxcount, int pageSize)
        {
            int pageMax = (int)Math.Ceiling(pageMaxcount * 1.0 / 10);//最大页数

            if (pageMax <= 1)
            {
                return "";
            }
            StringBuilder sb = new StringBuilder();
            if (pageindex == 1)
            {
                sb.AppendFormat("<ul class='pagination'><li><a class='disabled  page'  aria-label='Previous' page='{0}'><span aria-hidden='true'>&laquo;</span></a></li>", pageindex);
            }
            else
            {
                sb.AppendFormat("<ul class='pagination'><li><a class='page'  aria-label='Previous' page='{0}'><span aria-hidden='true'>&laquo;</span></a></li>", pageindex - 1);
            }

            if (pageMax <= 10 && pageMax >= 2)
            {

                for (int i = 1; i <= pageMax; i++)
                {
                    if (i == pageindex)
                    {
                        sb.AppendFormat("<li><a class='actpage btn  page' page='{0}'>{0}</a></li>", i);
                    }
                    else
                    {
                        sb.AppendFormat("<li><a class='page' page='{0}'>{0}</a></li>", i);
                    }
                }
            }
            if (pageMax > 10)
            {
                int first = 1;
                int end = pageMax;
                if (pageindex >= 4 && pageindex <= pageMax - 4)
                {
                    first = pageindex - 4;
                    end = pageindex + 4;
                }
                if (pageindex == 3)
                {
                    first = 1;
                    end = 10;
                }
                if (pageindex == 2)
                {
                    first = 1;
                    end = 10;
                }
                if (pageindex == 1)
                {
                    first = 1;
                    end = 10;
                }
                if (pageindex == pageMax)
                {
                    first = pageMax - 9;
                    end = pageMax;
                }
                if (pageindex == pageMax - 1)
                {
                    first = pageMax - 9;
                    end = pageMax;
                }
                if (pageindex == pageMax - 2)
                {
                    first = pageMax - 9;
                    end = pageMax;
                }
                if (pageindex == pageMax - 3)
                {
                    first = pageMax - 9;
                    end = pageMax;
                }
                for (int i = first; i <= end; i++)
                {
                    if (i == pageindex)
                    {
                        sb.AppendFormat("<li><a class='actpage btn page' page='{0}'>{0}</a></li>", i);
                    }
                    else
                    {
                        sb.AppendFormat("<li><a class='page' page='{0}'>{0}</a></li>", i);
                    }

                }
            }

            if (pageindex == pageMax)
            {
                sb.AppendFormat("<li><a class='disabled  page' aria-label='Next'  page='{0}'><span aria-hidden='true'>&raquo;</span></a></li></ul>", pageMax);
            }
            else
            {
                sb.AppendFormat("<li><a class='page' aria-label='Next' page='{0}'><span aria-hidden='true'>&raquo;</span></a></li></ul>", pageindex + 1);
            }

            return sb.ToString();
        }
    }
}