用Asp.net实现新闻分页

    技术2022-05-11  20

    出处:http://blog.csdn.net/mengfanpp/archive/2004/08/16/76103.aspx 思想:方法是在后台添加新闻时,估计在应该分页的地方插入一个标记(我插入的是[PAGE]),在前台显示时,我传入了一个参数Page,表示要显示第几页,在显示页面,我根据标记[PAGE]分别把新闻内容放入数组中,如果传入的参数Page的值是1,我就取Arr[0]的值,如果是第二个...... 还有,我把分页的html代码是根据统计的[PAGE]来决定是否显示的   BaseInfo是我定义的基本信息类:   public class BaseInfo        {               public string ID,Summary,Content,Picture;               public DateTime Publictime;                 public StringBuilder PageFoot = new StringBuilder();                 public BaseInfo()               {                                        }                 //添加               public int Add()               {                      ...                         }                 //更新               public int Update()               {                      ...               }                             //初始化               public void Init()               {                      ...               }        }     在这个页面要传入两个参数Page和ID,第一次链接到这个页面传入的Page值应该是1,而且一定是1,ID是新闻的ID,如新闻ID=1的连接应该是BaseInfoDetail.aspx?Page=1&ID=1 NextAt是后一个[PAGE]的位置,BackAt是前一个[PAGE]标志的位置,PageFoot是一个html表格我加了runat=server 代码如下: BaseInfoDetail.aspx的部分代码如下: BaseInfo info = new BaseInfo();                                       info.ID = Request.QueryString["ID"];                               info.Init();                               //****************************************************************************************************                             //分页                             // i:计算标志“[PAGE]”的个数的                             //                             //                 -- 梦凡 2004年8月14号19:32                             int NextAt = -4,i=0,BackAt = 0;                             string[] TempContent = new string[20] ;                             do                             {                                    NextAt += 4;                                    NextAt = info.Content.IndexOf("[PAGE]",NextAt);                                                                                                                                          if(NextAt != -1)                                    {                                           i++;                                           TempContent[i] = info.Content.Substring(BackAt,Math.Abs(NextAt-BackAt));                                           BackAt = NextAt + 6;                                    }                             }while(NextAt != -1);                                                                       int CurrentPage = Convert.ToInt32(Request.QueryString["Page"]);                             if(i>0)                             {                                    info.Content = TempContent[CurrentPage];                                    this.PageFoot.Visible = true;                             }                             else                                    this.PageFoot.Visible = false;                                                                info.PageFoot.Append("共" +i.ToString()+"页 ");                             for(int j=1;j<=i;j++)                             {                                    info.PageFoot.Append("[<a href='BaseInfoDetail.aspx?Page=" +j.ToString()+ "&ID=" +info.ID+ "'>" +j.ToString()+ "</a>] ");                             }                             if(CurrentPage != i)                             {                                    CurrentPage += 1;                                    info.PageFoot.Append("<a href='BaseInfoDetail.aspx?Page=" +CurrentPage.ToString()+ "&ID=" +info.ID+ "'>下一页</a> ");                             }                                                         //****************************************************************************************************  

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