diff --git a/LUA_GenDialog.cpp b/LUA_GenDialog.cpp
index 911b120..2220cff 100644
--- a/LUA_GenDialog.cpp
+++ b/LUA_GenDialog.cpp
@@ -190,21 +190,24 @@ CALLBACK UpdateDialogSelection( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPara
       if ( hwndDlg == nullptr)
          return FALSE ;
      // recupero il testo dell'EDIT corretto
-      string sIds ;
+      string sSel ;
       AtoWEX<128> wsEdit( "") ;
       if ( GetDlgItemText( hwndDlg, nEditId, LPWSTR( wsEdit), 128) > 0)
-         sIds = wstrztoA( wsEdit) ;
+         sSel = wstrztoA( wsEdit) ;
      // deseleziono tutto
       ExeDeselectAll() ;
-     // seleziono gli ID contenuti
-      if ( ! sIds.empty()) {
-         STRVECTOR vsIds;
-         Tokenize( sIds, ",", vsIds) ;
-         for ( const string& s : vsIds) {
-            int nId = GDB_ID_NULL ;
-            if ( FromString( s, nId)  &&  nId != GDB_ID_NULL)
-               ExeSelectObj( nId) ;
+     // seleziono gli Id contenuti
+      if ( ! sSel.empty()) {
+         INTVECTOR vIds ;
+         FromString( sSel, vIds) ;
+         string sOkSel = "" ;
+         for ( int nId : vIds) {
+            if ( ExeSelectObj( nId))
+               sOkSel += ToString( nId) + "," ;
          }
+         if ( ! sOkSel.empty())
+            sOkSel.pop_back() ;
+         SetDlgItemText( hwndDlg, nEditId, stringtoW( sOkSel)) ;
       }
      // aggiorno la grafica ed esco
       ExeDraw() ;
@@ -562,7 +565,7 @@ CALLBACK DialogBoxProc( HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam
                   break ;
                case CTRL_BUTTON :
                   if ( GetDlgItemText( hwndDlg, IDC_EDIT1 + i, LPWSTR( wsEdit), 128) > 0)
-                     s_sEdit[i] = wstrztoA( wsEdit) ;
+                     s_sEdit[i] = ValidateSelection( wstrztoA( wsEdit)) ;
                   break ;
                }
             }