DotNET 长文章分页方法

 

自己写的一个长文章分页：

用的时候只要传入三个参数：文章的内容；文章显示页面的链接；每页估计显示的字数；

该方法不会截断HTML的标签。

 

        #region 长文章分页方法
        /// <summary>
        /// 长文章分页方法
        /// </summary>
        /// <param name="content">整篇文章的所有内容</param>
        /// <param name="url">文章显示页的路径</param>
        /// <param name="contenLength">每页预计的字数</param>
        /// <returns>每页的内容</returns>

        public string ArticlePager(string content, string url, int contenLength)
        {
            string[] contentArray;
            ArrayList newContentArray = new ArrayList();
            string perPageContent;
            string color = "black";
            string pagerBottom = "<br>";
            string urlUpPage = "", urlNextPage = "";
            System.Text.StringBuilder strBuider = new System.Text.StringBuilder();
            content = @"<p>" + content + "<p>";
            contentArray = Regex.Split(content, "<p>", RegexOptions.IgnoreCase);
            string _tempString = "";
            if(content.Length<contenLength)
            {
                newContentArray.Add(content);
            }
            else
            {
                for (int i = 0; i < contentArray.Length; i++)
                {
                    _tempString += contentArray[i];
                    if (_tempString.Length > contenLength)
                    {
                        newContentArray.Add(_tempString);
                        _tempString = "";
                    }
                }
                newContentArray.Add(_tempString);
            }
            if (newContentArray.Count <= 0)
            {
                pagerBottom = "";
            }
            else
            {
                for (int i = 0; i < newContentArray.Count; i++)
                {
                    int j = i + 1;
                    string _tempUrl = "";
                    _tempUrl = url + "page=" + j.ToString();
                    strBuider.Append("<a href=\"");
                    strBuider.Append(_tempUrl);
                    strBuider.Append("\">");
                    strBuider.Append("[");
                    strBuider.Append("<font color=\""+color+"\">");
                    strBuider.Append(j.ToString());
                    strBuider.Append("</font>");
                    strBuider.Append("]");
                    strBuider.Append("</a>");
                }
            }

            if (System.Web.HttpContext.Current.Request.QueryString["page"] == null)
            {
                urlUpPage = "上一页";
                urlNextPage = "下一页";
                pagerBottom = urlUpPage + strBuider.ToString() + urlNextPage;
                perPageContent = (newContentArray.Count > 0) ? newContentArray[0] + "<center>" + pagerBottom + "</center>" : "<center>文章无内容</center>";
            }
            else
            {
                int _up, _next;
                int page = int.Parse(System.Web.HttpContext.Current.Request.QueryString["page"]);
                _up = page - 1;
                _next = page + 1;
                urlUpPage = (_up <= 0) ? "无上一页" : "<a href=\"" + url + "page=" + Convert.ToString(_up) + "\">上一页</a>";
                urlNextPage = (_next > newContentArray.Count) ? "无下一页" : "<a href=\"" + url + "page=" + Convert.ToString(_next) + "\">下一页</a>";
                StringBuilder strBuildI = new StringBuilder();
                for (int i = 0; i < newContentArray.Count; i++)
                {
                    int j = i + 1;
                    color = (page == j) ? "red" : "black";
                    string _tempUrl = "";
                    _tempUrl = url + "page=" + j.ToString();
                    strBuildI.Append("<a href=\"");
                    strBuildI.Append(_tempUrl);
                    strBuildI.Append("\">");
                    strBuildI.Append("[");
                    strBuildI.Append("<font color=\"" + color + "\">");
                    strBuildI.Append(j.ToString());
                    strBuildI.Append("</font>");
                    strBuildI.Append("]");
                    strBuildI.Append("</a>");
                }
                pagerBottom = urlUpPage + strBuildI + urlNextPage;
                perPageContent = (newContentArray.Count > 0) ? newContentArray[page - 1] + "<center>" + pagerBottom + "</center>" : "<center>文章无内容</center>";
            }
            return perPageContent;
        }
        #endregion