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/*************************************************************************
Class Declaration : CUpdatedRow
**************************************************************************
Source file : UpdatedRow.cpp
Header file : UpdatedRow.h
// This software along with its related components, documentation and files ("The Libraries")
// is � 1994-2007 The Code Project (1612916 Ontario Limited) and use of The Libraries is
// governed by a software license agreement ("Agreement"). Copies of the Agreement are
// available at The Code Project (www.codeproject.com), as part of the package you downloaded
// to obtain this file, or directly from our office. For a copy of the license governing
// this software, you may contact us at legalaffairs@codeproject.com, or by calling 416-849-8900.
Purpose
The CUpdatedRow class is a helper class of the ADO datasource which
is used to temporarly store changes user makes to a single row. These
changes will later be set to the database when user moves off the record
in the database, or closes the Ultimate Grid window.
*************************************************************************/
#ifndef _UpdatedRow_H_
#define _UpdatedRow_H_
class CUpdatedRow
{
public:
CUpdatedRow();
virtual ~CUpdatedRow();
// access functions used to set and get information
// on row number that is currently updated
inline long GetUpdateRowNumber(){ return m_rowNumber; }
inline void SetUpdateRowNumber( long row )
{
if ( m_rowNumber != row )
Empty();
m_rowNumber = row;
}
// access function used to determine if there is new
// value for given column
BOOL IsUpdated( int col );
// function to retrieve count of new values in the list
int Count();
// access function used to retrieve new cell' data
_variant_t GetUpdatedVal( int col );
// function used to set new value
int UpdateCell( int col, _variant_t newVal );
// function to remove given
int RemoveNewVal( int col );
// delete all items in the list
int Empty();
private:
typedef struct _tagColList
{
int colNumber;
_variant_t newVal;
// pointer to next element in the list
struct _tagColList *next;
// default constractor
_tagColList()
{
next = NULL;
}
}ColList;
protected:
ColList *m_pColListHead;
int m_rowNumber;
};
#endif // _UpdatedRow_H_
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In January 2005, David Cunningham and Chris Maunder created TheUltimateToolbox.com, a new group dedicated to the continued development, support and growth of Dundas Software’s award winning line of MFC, C++ and ActiveX control products.
Ultimate Grid for MFC, Ultimate Toolbox for MFC, and Ultimate TCP/IP have been stalwarts of C++/MFC development for a decade. Thousands of developers have used these products to speed their time to market, improve the quality of their finished products, and enhance the reliability and flexibility of their software.
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