(转)lucene.net 读取指定页数的记录

1. public DataTable GetListReader(int pageI,int pPageListSize,out int pagecountI){
2.     if(!IndexReader.IndexExists(directory))MakeInit(directory);
3.     IndexReader reader = IndexReader.Open(directory);    
4.     pagecountI=reader.NumDocs();
5.     DataTable DT=this.GetSegmentTable();
6.     pageI=Math.Max(1,pageI);
7.     int startLoopI=Math.Min(reader.NumDocs(),(pageI-1)*pPageListSize);
8.     int stopLoopI=Math.Min(reader.NumDocs(),pageI*pPageListSize);
9.     int trueID = -1;
10.     for(int iLoop=reader.MaxDoc()-1;iLoop>-1;iLoop--){
11.         if(!reader.IsDeleted(iLoop)){
12.             ++trueID;
13.             //System.Web.HttpContext.Current.Response.Write(trueID);
14.             if(trueID>stopLoopI )break;
15.             if(trueID>=startLoopI && trueID<stopLoopI){
16.                 DataRow dr=DT.NewRow();
17.                 dr[1]=Model.TUtility.CInt(reader.Document(iLoop).Get("ID"));
18.                 dr[2]=Model.TUtility.CInt(reader.Document(iLoop).Get("UserID"));
19.                 dr[3]=reader.Document(iLoop).Get("UserName");
20.                 dr[4]=Model.TUtility.CInt(reader.Document(iLoop).Get("CatID"));
21.                 dr[5]=reader.Document(iLoop).Get("Title");
22.                 dr[6]=DateField.StringToDate(reader.Document(iLoop).Get("Time"));
23.                 DT.Rows.Add(dr);
24.             }
25.         }
26.     }
27.     reader.Close();
28.     //IndexReader.Unlock(directory);
29. 
    
30. 
    
31.     return DT;
32. }