• .net 分页案例效果


     string path_query = "RigthAdvent.aspx?";
    #region 分页

            /// <summary>
            
    /// 分页代码
            
    /// </summary>
            
    /// <param name="totalResult">总的结果条数</param>
            
    /// <param name="pageSize">每一页的大小</param>
            
    /// <param name="currentPage">当前页码</param>
            
    /// <returns>分页的html</returns>
            public string Paging(double totalResult, int pageSize, int currentPage)
            {
                //在形如“上一页 1 ... 4 5 6 7 8 ... 100 下一页”的分页效果中,
                
    //leftNum = 4,相应的rightNum = 8; currentPage = 6; step = 2(从4到6间的差叫做step)

                string pageUrl = "";
                //左右延伸个数
                int step = 4;

                int leftNum;
                int rightNum;

                //总页数
                string allshuju = totalResult.ToString();
                int totalPageCount = (int)Math.Ceiling(totalResult / pageSize);

                //是否显示上一页
                if (currentPage > 1)
                {
                    pageUrl += "<a href='" + path_query + "page=" + (currentPage - 1) + "'>上一页</a>";
                }

                //此时应该这样显示页码 上一页 1 ...  5 6 7 8 9 ... 100 下一页
                
    //即当前浏览的页数在中间几页
                if ((currentPage - step) > 2 && (totalPageCount > step * 2 + 2))
                {

                    //第一页
                    pageUrl += "<a href='" + path_query + "page=1'>1</a>";

                    //标识变量,标识当前页是否是倒数几页,该变量在下面会用到
                    bool isLastFiewPages = false;


                    //判断是否是倒数后几页
                    if (currentPage + (step * 2 + 1 + 1) > totalPageCount)
                    {
                        leftNum = totalPageCount - (step * 2 + 1);
                        rightNum = totalPageCount;
                        isLastFiewPages = true;
                    }
                    else
                    {
                        leftNum = currentPage - step;
                        rightNum = currentPage + step;
                    }


                    if (leftNum - 1 > 1)
                    {
                        pageUrl += "<span>...</span>";
                    }

                    //拼装分页代码
                    for (int i = leftNum; i <= rightNum; i++)
                    {
                        if (i == currentPage)
                        {
                            //当前页 
                            pageUrl = pageUrl + "<span class='currentpage'>" + i + "</span>";
                        }
                        else
                        {
                            //有连接
                            pageUrl = pageUrl + "<a href='" + path_query + "page=" + i + "'>" + i + "</a>";
                        }
                    }
                    //最后一页
                    if (!isLastFiewPages)
                    {
                        pageUrl += "<span>...</span><a href='" + path_query + "page=" + totalPageCount + "'>" + totalPageCount + "</a>";
                    }

                }
                //此时应该这样显示页码 上一页 1 2 3 4 5 6 ... 100 下一页或者
                
    //当总页数小于或等于(2 * step + 1 + 1)的时候应该这样显示 上一页 1 2 3 4 5 下一页
                else
                {
                    if (currentPage <= 0)
                    {
                        currentPage = 1;
                    }

                    leftNum = 1;
                    //rightNum总页数和step * 2 + 1 + 1中较小的那个,
                    rightNum = totalPageCount < (step * 2 + 1 + 1) ? totalPageCount : (step * 2 + 2);

                    for (int i = leftNum; i <= rightNum; i++)
                    {
                        if (i == currentPage)
                        {
                            pageUrl += "<span class='currentpage'>" + currentPage + "</span>";
                        }
                        else
                        {
                            pageUrl += "<a href='" + path_query + "page=" + i + "'>" + i + "</a>";
                        }
                    }

                    //如果总条数大于前几页连续显示的条数需要这样显示 上一页 1 2 3 4 5 6 ... 100 下一页
                    if (totalPageCount > (step * 2 + 2))
                    {
                        if (totalPageCount - 1 > rightNum)
                        {
                            pageUrl += "<span>...</span>";
                        }
                        pageUrl += "<a href='" + path_query + "page=" + totalPageCount + "'>" + totalPageCount + "</a>";
                    }
                }
                int tempxia = currentPage + 1;
                int tempqian = currentPage - 1; ;
                if (tempxia >= totalPageCount)
                {
                    tempxia = totalPageCount;
                }
                if (tempqian <= 0)
                {
                    tempqian = 1;
                }
                pageShow = @"<a href='" + path_query + "page=" + tempxia + "'> <img src='images/sdhouse_05.gif' title='下一页'/></a><span>" + currentPage + "/" + totalPageCount + "</span><a href='" + path_query + "page=" + tempqian + "'><img src='images/sdhouse_03.gif' title='上一页'/></a>";

                if (currentPage < totalPageCount)
                {
                    pageUrl += "<a href='" + path_query + "page=" + (currentPage + 1) + "' id='mainnext'>下一页</a>";
                }
                return pageUrl;
            }

            #endregion 

    .pageinglist {
    display
    : block;
    height
    : 50px;
    border-top
    : 1px solid #dedede;
    background
    : #fafafa;
    float
    : right;
    margin-right
    : 15px;
    padding-top
    : 15px;
    width
    : 100%;
    }
    pageinglist span 
    {
    color
    : #434343;
    padding
    : 6px 10px 6px 10px;
    /* background-color: #ff9418; */
    border-radius
    : 3px;
    /* border: 1px solid #ff9418; */
    float
    : left;
    font-size
    : 14px;
    }
    pageinglist a 
    {
    margin-left
    : 4px;
    margin-right
    : 4px;
    border
    : 1px solid #ddd;
    padding
    : 6px 10px 6px 10px;
    border-radius
    : 3px;
    float
    : left;
    color
    : #000;
    font-size
    : 14px;
    text-decoration
    : none;

    } 

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  • 原文地址:https://www.cnblogs.com/nzcblog/p/4000106.html
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