Groups 和 Users Append、ChangePassword 方法範例 (VC++)

此範例會示範 Groups 的 Append 方法，以及藉由將新的 Group 與新的 User 新增至系統，來示範 Users 的 Append 方法。 新的 Group 會附加至新 User 的 Groups 集合。 因此，新的 User 會新增至 Group。 此外，ChangePassword 方法可用於指定 User 密碼。

注意

若您要連線至支援 Windows 驗證的資料來源提供者，則應該指定 Trusted_Connection=yes 或 Integrated Security = SSPI，而非在連接字串中指定使用者識別碼與密碼資訊。

// BeginGroupCpp.cpp  
// compile with: /EHsc  
#import "msadox.dll" no_namespace  
  
#include "iostream"  
using namespace std;  
  
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};  
  
int main() {  
   if (FAILED(::CoInitialize(NULL)) )  
      return -1;  
  
   HRESULT hr = S_OK;  
  
   // Define and initialize ADOX object pointers. These are in ADODB namespace.  
   _CatalogPtr m_pCatalog = NULL;  
   _UserPtr m_pUserNew = NULL;  
   _UserPtr m_pUser = NULL;  
   _GroupPtr m_pGroup = NULL;  
  
   // Define String Variables.  
   _bstr_t strCnn("Provider='Microsoft.JET.OLEDB.4.0';Data source = 'c:\\Northwind.mdb';jet oledb:system database='c:\\system.mdw'");  
  
   try {  
      TESTHR(hr = m_pCatalog.CreateInstance(__uuidof (Catalog)));  
      m_pCatalog->PutActiveConnection(strCnn);  
  
      // Create and append new group with a string.  
      m_pCatalog->Groups->Append("Accounting");  
  
      // Create and append new user with an object.  
      TESTHR(hr = m_pUserNew.CreateInstance(__uuidof(User)));  
      m_pUserNew->PutName("Pat Smith");  
      m_pUserNew->ChangePassword("", "Password1");  
      m_pCatalog->Users->Append(_variant_t((IDispatch *)m_pUserNew), "");  
  
      // Make the user Pat Smith a member of the Accounting group by creating and adding the  
      // appropriate Group object to the user's Groups collection. The same is accomplished if a User  
      // object representing Pat Smith is created and appended to the Accounting group Users collection  
      m_pUserNew->Groups->Append("Accounting");  
  
      // Enumerate all User objects in the catalog's Users collection.  
      long lUsrIndex;  
      long lGrpIndex;  
      _variant_t vIndex;  
      for ( lUsrIndex = 0 ; lUsrIndex < m_pCatalog->Users->Count ; lUsrIndex++ ) {  
         vIndex = lUsrIndex;  
         m_pUser = m_pCatalog->Users->GetItem(vIndex);  
         cout << "  " << m_pUser->Name << endl;  
         cout << "   Belongs to these groups:" << endl;  
  
         // Enumerate all Group objects in each User object's Groups collection.  
         if (m_pUser->Groups->Count != 0)  
            for ( lGrpIndex = 0 ; lGrpIndex < m_pUser->Groups->Count ; lGrpIndex++ ) {  
               vIndex = lGrpIndex;  
               m_pGroup = m_pUser->Groups->GetItem(vIndex);  
               cout << "     " << m_pGroup->Name << endl;  
            }  
         else  
            cout << "       [None]" << endl;  
      }  
  
      // Enumerate all Group objects in the default workspace's Groups collection.  
      for ( lGrpIndex = 0 ; lGrpIndex < m_pCatalog->Groups->Count ; lGrpIndex++ ) {  
         vIndex = lGrpIndex;  
         m_pGroup = m_pCatalog->Groups->GetItem(vIndex);  
         cout << "   " << m_pGroup->Name << endl;  
         cout << "    Has as its members:" << endl;  
  
         // Enumerate all User objects in each Group object's Users Collection.  
         if ( m_pGroup->Users->Count != 0)  
            for ( lUsrIndex = 0 ; lUsrIndex < m_pGroup->Users->Count ; lUsrIndex++ ) {  
               vIndex = lUsrIndex;  
               m_pUser = m_pGroup->Users->GetItem(vIndex);  
               cout << "    " << m_pUser->Name << endl;  
            }  
         else  
            cout << "      [None]" << endl;  
      }  
  
      // Delete new User and Group object because this is only a demonstration.  
      m_pCatalog->Users->Delete("Pat Smith");  
      m_pCatalog->Groups->Delete("Accounting");  
   }  
   catch(_com_error &e) {  
      // Notify the user of errors if any.  
      _bstr_t bstrSource(e.Source());  
      _bstr_t bstrDescription(e.Description());  
  
      printf("\n\tSource :  %s \n\tdescription : %s \n ", (LPCSTR)bstrSource, (LPCSTR)bstrDescription);  
   }  
   catch(...) {  
      cout << "Error occurred in include files...." << endl;  
   }  
  
   ::CoUninitialize();  
}