vc中将mo的一个record存入数组，为什么取不出record的属性？

<P>CArray<CMoRecordset,CMoRecordset>m_Rec;
 CMoPoint pt(m_map.ToMapPoint((float)x,(float)y));
 CMoLayers layers(m_map.GetLayers());
 double len;
 len = m_map.ToMapDistance(10);
 CMoRecordset recs;
 CMoFields Fields;
 VARIANT va;
 VariantInit(;va);
 va.vt = VT_I4;
        for(int i=0 ; i<layers.GetCount() ; i++)
       {
 va.intVal = i;
 CMoMapLayer counties(layers.Item(va1));
 recs = counties.SearchByDistance(pt,len,"");
             if(recs.GetCount()>0)
      {
              recs.MoveFirst();
       while (!recs.GetEof())
             {
                 CMoFields Fields( recs.GetFields());
                 CMoField FeutureField(Fields.Item(COleVariant(TEXT("FeatureId"))));  
   CString str;
     str = FeutureField.GetValueAsString();//there is no problem,I can get theFeatureId
                 m_Rec.Add(recs);//add the Recordset into CArray
                 recs.MoveNext()
              }
          }
       }
      if(m_Rec.GetSize()>0)
      {
 recs = m_Rec.GetAt(0);
 CMoFields Fields1(recs.GetFields());
 CMoField FeutureField(Fields1.Item(COleVariant(TEXT("FeatureId"))));    
 CString str;
str = FeutureField.GetValueAsString();//there is some mistake;I can not get the FeatureId
      }</P>
<P>将查询得到的record存入动态数组，为什么再从数组中取出记录的时候无法得到record的属性呢？请高手指点</P>