Ejemplos de OnAddData en C++ (Cpp)

Ejemplo n.º 1

Archivo: BCGPDAOGridCtrl.cpp Proyecto: cugxiangzhenwei/WorkPlatForm

//*****************************************************************************
CBCGPGridRow* CBCGPDAOGridCtrl::CreateVirtualRow (int nRow)
{
	CBCGPGridRow* pRow = CBCGPGridCtrl::CreateVirtualRow (nRow);

	if (pRow == NULL)
	{
		return NULL;
	}

	if (m_pRecordSet == NULL)
	{
		ASSERT (FALSE);
		return NULL;
	}

	try
	{
		m_pRecordSet->MoveFirst ();
		m_pRecordSet->Move (nRow);

		for (int nCol = 0; nCol < GetColumnCount (); nCol++)
		{
			OnAddData (pRow, nCol, nRow);
		}
	}
	catch (CDaoException* pEx)
	{
		OnDaoException (pEx);
		pEx->Delete ();
	}

	return pRow;
}

Ejemplo n.º 2

Archivo: BCGPODBCGridCtrl.cpp Proyecto: iclosure/jframework

BOOL CBCGPODBCGridCtrl::OpenSQL (LPCTSTR lpszSQL)
{
	ASSERT (lpszSQL != NULL);
	m_strSQL.Empty ();

	RemoveAll ();

	if (!m_bIsSorting)
	{
		DeleteAllColumns ();
	}
	
	if (m_pDataBase == NULL)
	{
		ASSERT (FALSE);
		return FALSE;
	}

	try
	{
		ASSERT_VALID (m_pDataBase);

		if (!m_pDataBase->IsOpen ())
		{
			ASSERT (FALSE);
			return FALSE;
		}

		if (m_pRecordSet != NULL)
		{
			ASSERT_VALID (m_pRecordSet);

			if (m_pRecordSet->IsOpen ())
			{
				m_pRecordSet->Close ();
			}

			delete m_pRecordSet;
			m_pRecordSet = NULL;
		}

		//---------------------------------------------------------
		// Create a new record set and open it using SQL statement:
		//---------------------------------------------------------
		m_pRecordSet = new CRecordset (m_pDataBase);
		if (!m_pRecordSet->Open (CRecordset::dynaset, lpszSQL))
		{
			return FALSE;
		}

		int nColumns = 0;

		if (!m_bIsSorting)
		{
			//-------------
			// Add columns:
			//-------------
			CStringList lstField;
			if (!GetFieldList (lstField))
			{
				return FALSE;
			}

			int nColumn = 0;
			for (POSITION pos = lstField.GetHeadPosition (); pos != NULL; nColumn++)
			{
				InsertColumn (nColumn, lstField.GetNext (pos), 50);
			}

			nColumns = (int) lstField.GetCount ();
		}
		else
		{
			nColumns = GetColumnCount ();
		}

		if (nColumns == 0)
		{
			// No columns
			AdjustLayout ();
			return TRUE;
		}

		//-------------
		// Add records:
		//-------------
		if (m_pRecordSet->IsEOF () && m_pRecordSet->IsBOF ())
		{
			// The table is empty
			AdjustLayout ();
			return TRUE;
		}

		if (m_bVirtualMode)
		{
			while (!m_pRecordSet->IsEOF ())
			{
				m_pRecordSet->MoveNext ();
			}

			SetVirtualRows (max (0, m_pRecordSet->GetRecordCount ()));
		}
		else
		{
			for (int nRow = 0; !m_pRecordSet->IsEOF (); 
				m_pRecordSet->MoveNext (), nRow++)
			{
				CBCGPGridRow* pRow = CreateRow (nColumns);
				ASSERT_VALID (pRow);

				for (int nColumn = 0; nColumn < nColumns; nColumn++)
				{
					OnAddData (pRow, nColumn, nRow);
				}

				if (OnBeforeAddRow (pRow, nRow))
				{
					AddRow (pRow, FALSE);
				}
				else
				{
					delete pRow;
				}
			}
		}

		m_strSQL = lpszSQL;
		AdjustLayout ();

		if (!m_pRecordSet->CanUpdate ())
		{
			SetReadOnly ();
		}
	}
	catch (CDBException* pEx)
	{
		OnODBCException (pEx);
		pEx->Delete ();

		return FALSE;
	}

	return TRUE;
}