asp.net实现简单分页实例

///<summary>
///分页内容
///</summary>
///<paramname="size">页面大小</param>
///<paramname="count">页面数量</param>
///<paramname="currendIndex">当前页</param>
///<paramname="pattern">url模式：demo.aspx?page={0}</param>
///<paramname="target">窗口模式</param>
///<returns></returns>
publicstaticstringget_pagenation(intsize,
                                   intcount,
                                   intcurrendIndex,
                                   stringpattern,
                                   stringtarget)
{
   //1>打开窗口目标
   target=string.IsNullOrEmpty(target)?"_top":target;
   //2>总页数
   intpageCount=count/size;
   pageCount=pageCount*size==count?pageCount:pageCount+1;
   //3>分页内容
   StringBuilderstrHtml=newStringBuilder();
   strHtml.Append("<spanclass="pagenation">");
 
   #region首部处理
   if(currendIndex>1)
   {
       strHtml.AppendFormat("<ahref="1"target="{0}">[首页]</a>",target);
       strHtml.AppendFormat("<ahref="{0}"target="{1}">[上一页]</a>",string.Format(pattern,currendIndex-1),target);
   }
   else
   {
       strHtml.Append("<spanclass="disabled">[首页]</span>  <spanclass="disabled">[上一页]</span>");
   }
   #endregion
 
   #region中间部分
   inti=1;
 
   intright=(currendIndex+4)>pageCount?pageCount:currendIndex+4;
   if(currendIndex>6)
   {
       i=currendIndex-5;
   }
   else
   {
       right=pageCount>=10?10:pageCount;
   }
   for(;i<=right;i++)
   {
       if(i==currendIndex)
       {
           strHtml.AppendFormat("<fontclass="current">{0}</font>",i);
           strHtml.AppendLine();
           continue;
       }
       strHtml.AppendFormat("<ahref="{0}"target="{1}">[{2}]</a>",string.Format(pattern,i),target,i);
       strHtml.AppendLine();
   }
   #endregion
 
   #region尾部处理
   if(currendIndex==pageCount)
   {
       strHtml.Append("<spanclass="disabled">[下一页]</span><spanclass="disabled">[末页]</span>");
       strHtml.AppendFormat("总共({0})页",pageCount);
   }
   else
   {
       strHtml.AppendFormat("<ahref="{0}"target="{1}">[下一页]</a>",string.Format(pattern,currendIndex+1),target);
       strHtml.AppendFormat("<ahref="{0}"target="{1}">[末页]</a>",string.Format(pattern,pageCount),target);
       strHtml.AppendFormat("  <label>总共({0})页</label>",pageCount);
   }
   #endregion
 
   strHtml.Append("</span>");
 
   returnstrHtml.ToString();
}