新闻内容实现分页

/// <summary>
    
/// 新闻内容分页
    
/// </summary>
    
/// <param name="content">新闻内容</param>
    
/// <param name="extension">扩展名(aspx,html..)</param>
    
/// <returns></returns>

    public string NewsContentPager(string content,string extension)
    
{
        
string p = "\\[page\\]";

        
if (content.IndexOf("[page]"!= -1)
        
{
            
string page = Request.QueryString["page"];           
            
string[] arrContent = Regex.Split(content,p,RegexOptions.IgnoreCase); 
            
int pageSize = arrContent.Length;           

            
if (String.IsNullOrEmpty(page))
                page 
= "0";


            
if (int.Parse(page) >= pageSize)
            
{
                Response.StatusCode 
= 404;
                Response.End();
            }


            

            
//生成分页页码
            StringBuilder sb = new StringBuilder();
            sb.Append(arrContent[
int.Parse(page)].ToString());
            sb.Append(
"<div id=\"newspager\" style=\"margin:5px 0px 5px 0px;\">");

            
if (int.Parse(page) > 0)
                sb.AppendFormat(
"<a href=\"{0}_{1}.{2}\">上一页</a>", Request.QueryString["id"],int.Parse(page)-1,extension);

            
for (int i = 0; i < pageSize; i++)
            
{
                
if (i == int.Parse(page))
                    sb.AppendFormat(
"<span>{0}</span>", i + 1);
                
else
                    sb.AppendFormat(
"<a href=\"{0}_{1}.{3}\">{2}</a>", Request.QueryString["id"], i, i + 1,extension);
            }


            
if (int.Parse(page) < pageSize-1)
                sb.AppendFormat(
"<a href=\"{0}_{1}.{2}\">下一页</a>", Request.QueryString["id"], int.Parse(page)+1,extension);

            sb.Append(
"</div>");

            
return sb.ToString() ;
        }


        
return content;

    }
posted @ 2007-06-04 16:23  M'  阅读(700)  评论(0编辑  收藏  举报