数据库编程

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Visual C++

Recordset2.h：源码内容

							#if !defined(AFX_RECORDSET2_H__22061DAC_CE91_11D0_B332_0080C83612CB__INCLUDED_)
#define AFX_RECORDSET2_H__22061DAC_CE91_11D0_B332_0080C83612CB__INCLUDED_
#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
// Recordset2.h : header file
//
#if defined(BUILD_RECORDSET_PATCH)
#define	EXTATTR	__declspec(dllexport)
#else
#define	EXTATTR	__declspec(dllimport)
#endif
/////////////////////////////////////////////////////////////////////////////
// CRecordset2 recordset
class EXTATTR CRecordset2 : public CRecordset
{
public:
	CRecordset2(CDatabase* pDatabase = NULL);
	DECLARE_DYNAMIC(CRecordset2)
// Field/Param Data
	//{{AFX_FIELD(CRecordset2, CRecordset)
	//}}AFX_FIELD
// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CRecordset2)
	public:
	virtual void Move(long lRows, WORD wFetchType = SQL_FETCH_RELATIVE);
	//}}AFX_VIRTUAL
// Implementation
};
namespace	CRecordsetPatch						// patches CString parameters to stored procedures
{
// To use this function(s) you need to put into DoFieldExchange function the following declaration
//							using CRecordsetPatch::RFX_Text;
// This has to precede any call to RFX_Text
// Failure in doing so will call the global RFX_Text instead
	EXTATTR	void AFXAPI RFX_Text(CFieldExchange* pFX,LPCTSTR szName,
								 CString& value,int nMaxLength = 255,
								 int nColumnType = SQL_VARCHAR,short nScale = 0);
};
#define	USES_RecordsetPatch	using CRecordsetPatch::RFX_Text
#if defined(_DEBUG)
#pragma comment(lib,"RecordsetPatchD")
#else
#pragma comment(lib,"RecordsetPatch")
#endif
//{{AFX_INSERT_LOCATION}}
// Microsoft Developer Studio will insert additional declarations immediately before the previous line.
#endif   // !defined(AFX_RECORDSET2_H__22061DAC_CE91_11D0_B332_0080C83612CB__INCLUDED_)

						