Visual Studio .NET 2002Visual Studio 6Visual C++ 7.0Windows 2000Visual C++ 6.0Windows XPMFCIntermediateDevVisual StudioWindowsC++
Adding "Merge cells" support to the MFC GridControl






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Sep 15, 2002

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Adding "Merge cells" support to the MFC GridControl.
Introduction
This example demonstrates how to add "merge cells" ability to Chris Maunder's MFC Grid control (derived from CWnd
).
The example modifies only two classes: CGridCellBase
and CGridCtrl
. In the class CGridCellBase
,the following four private member variables are added:
CCellRange m_MergeRange; bool m_IsMergeWithOthers; CCellID m_MergeCellID; bool m_Hide;
Six public member functions are also added:
void UnMerge(); virtual bool IsShow() ; virtual CCellRange GetMergeRange(); virtual bool IsMergeWithOthers(); virtual CCellID GetMergeCellID(); virtual void SetMergeCellID(CCellID cell);
In the class CGridCtrl
, the following six public member functions are added:
CGridCellBase* GetCell(CCellID cell); CCellID GetMergeCellID(CCellID cell); void UnMergeSelectedCells(); void MergeSelectedCells(); void UnMergeCells(int nStartRow, int nStartCol, int nEndRow, int nEndCol); void MergeCells(int nStartRow, int nStartCol, int nEndRow, int nEndCol);
Usage
- Use
CGridCtrl::MergeSelectedCells()
andMergeCells()
to merge the selected cells; - Use
CGridCtrl::UnMergeSelectedCells()
andUnMergeCells()
to restore the selected cell to its original state.
History
- 1.7 fixed the bug when merging in the corner, by Luther Bruck - 2002/12/31
- 1.6 fixed the bug when resizing the merged row - 2002/11/20
- 1.5 fixed the bug when resizing the merged column - 2002/11/18
- 1.4 bug when printing merge cell across pages fixed - 2002/10/10
- 1.3 fixed cells merge added - 2002/9/27
- 1.2 print bug fixed - 2002/9/23
- 1.1 scroll bug fixed - 2002/9/18
- 1.0 first release - 2002/9/15
(Note that users of the Grid control are bound by Chris' copyright requirements detailed on his web page.)