SPlist按PID层级顺序导入datatable

public  static  System.Data. DataTable  GetDataTable(  int  parentId,  SPList  list ,System.Data. DataTable  dt,  int  ceng)

        {

             SPQuery  query =  new  SPQuery ();

            query.Query =  @"<Where>

                          <Eq>

                             <FieldRef Name='PID' />

                             <Value Type='Number'>"  + parentId.ToString() +  @"</Value>

                          </Eq>

                       </Where>"  ;

             SPListItemCollection  items=  list.GetItems(query);

             foreach  ( SPListItem  item  in  items)

            {

                 string  id = item.ID.ToString();

                 string  taskName = ceng.ToString()+ "#"  +item[ "TaskNmae" ].ToString();

                 string  assignedTo =  "DFDSFD"  ;

                     //item["AssignedTo"].ToString().Substring(item["AssignedTo"].ToString().LastIndexOf("#") + 1);

                 string  status = item[ "Status"  ].ToString();

                 string  pID = item[ "PID"  ].ToString();

                dt.Rows.Add(id,taskName, assignedTo, status, pID);

                dt=GetDataTable(item.ID, list, dt,ceng+1);

            }

             return  dt;

        }

 

PID默认为0，层默认为1