Easy folder infinite level, using recursive refactoring hierarchy list

1      /// <summary>2      ///folder Entity3      /// </summary>4       Public classFolder5      {6          /// <summary>7          ///Folder ID8          /// </summary>9           Public intID {Get;Set; }Ten          /// <summary> One          ///folder name A          /// </summary> -           Public stringName {Get;Set; } -          /// <summary> the          ///Parent ID -          /// </summary> -           Public intfolder_parent_id {Get;Set; } -}

1         /// <summary>2         ///Refactoring the folder hierarchy list3         /// </summary>4         /// <param name= "Listsource" >Source Data</param>5         /// <param name= "PId" >Parent ID</param>6         /// <param name= "Count" >number of times the element was added</param>7         /// <param name= "Levelnum" >Current Level</param>8         /// <param name= "Listresult" >return result set</param>9         Private voidRefactorfolderlevellist (list<folder> Listsource,intPidintCount, list<int> Levelnum, list<folder>Listresult)Ten         { One             varLen_source =Listsource.count (); A             if(Count <Len_source) -             { -                 varTmp_list = listsource.where (m = m.folder_parent_id = =pId); the                 varLen_tmp_list =tmp_list. Count (); -                 BOOLAddflag =true; -                 intLevel =Levelnum.count (); -                 inti =0; +                 foreach(varIteminchtmp_list) -                 { +i++; AItem.name = Fillstring (level,"--") +Item.name; at                     varModel = Listresult.where (m = m.id = =item.id). FirstOrDefault (); -                     if(PId = =0&& Model! =NULL) -                         Continue; -                     Else - Listresult.add (item); -++count; in                     if(Listsource.where (m = m.folder_parent_id = = item.id). Count () >0) -                     { to                         if(!levelnum.contains (item.id) &&Addflag) +                         { -Addflag =false; the Levelnum.add (item.id); *                         } $ refactorfolderlevellist (Listsource, Item.id, Count, Levelnum, listresult);Panax Notoginseng                     } -                     Else the                     { +                         if(I <len_tmp_list) A                             Continue; theLevelnum =Newlist<int>(); +Refactorfolderlevellist (Listsource,0, Count, Levelnum, listresult); -                     } $                 } $             } -         } -         /// <summary> the         ///string padding -         /// </summary>Wuyi         /// <param name= "n" >number of fills</param> the         /// <param name= "str" >the string that needs to be populated</param> -         /// <returns></returns> Wu         Private stringFillstring (intNstringstr) -         { AboutStringBuilder ret =NewStringBuilder (); $              for(inti =0; I < n; i++) -             { - ret. Append (str); -             } A             returnret. ToString (); +}

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Easy folder infinite level, using recursive refactoring hierarchy list