I put buttons in my list

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C++

MFC

The problem is the scroll, I created a derived class of CListCtrl,

void CListBut::CalculateCellRect(int iColumnIndex, int iRowIndex, CRect& robCellRect)
{
	GetItemRect(iRowIndex, &robCellRect, LVIR_BOUNDS);

	CRect rcClient;
	GetClientRect(&rcClient);

	if (robCellRect.right > rcClient.right)
	{
		robCellRect.right = rcClient.right;
	}

	ScrollToView(iColumnIndex, iRowIndex, robCellRect);

	INT_PTR			nRow, nCol;
	//BOOL			bRes;
	RECT			cellRect;

	CArray<double, double> a_Rdim;
	CArray<double, double> a_RdimApp;

	
	CButton * but = new CButton;

	but->Create(_T(""), WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, robCellRect, this, 1);
}

<pre>
void CListBut::ScrollToView(int iColumnIndex, int iRowIndex, CRect& robCellRect)
{
	// Now scroll if we need to expose the column
	CRect rcClient;
	GetClientRect(&rcClient);

	int iColumnWidth = GetColumnWidth(iColumnIndex);

	int iOffSet = 0;
	int iOffSet1 = 0;

	for (int iIndex_ = 0; iIndex_ < iColumnIndex; iIndex_++)
	{
		iOffSet += GetColumnWidth(iIndex_);
	}

/*	for (int iIndex_1 = 0; iIndex_1 < iRowIndex; iIndex_1++)
	{
		iOffSet1 += GetColumnWidth(iIndex_1);
	}
*/

	CSize obScrollSize(0, 0);

	if (((iOffSet + robCellRect.left) < rcClient.left) ||
		((iOffSet + robCellRect.left) > rcClient.right))
	{
		obScrollSize.cx = iOffSet + robCellRect.left;
	}
	else if ((iOffSet + robCellRect.left + iColumnWidth) > rcClient.right)
	{
		obScrollSize.cx = iOffSet + robCellRect.left + iColumnWidth - rcClient.right;
	}


/*	if (((iOffSet1 + robCellRect.top) < rcClient.top) ||
		((iOffSet1 + robCellRect.top) > rcClient.bottom))
	{
		obScrollSize.cy = iOffSet + robCellRect.top;
	}
	else if ((iOffSet1 + robCellRect.top + iRowWidth) > rcClient.bottom)
	{
		obScrollSize.cy = iOffSet1 + robCellRect.top + iColumnWidth - rcClient.bottom;
	}

	*/
	//Scroll(obScrollSize);
	robCellRect.left -= obScrollSize.cx;

	// Set the width to the column width
	robCellRect.left += iOffSet;
	robCellRect.right = robCellRect.left + iColumnWidth;


}

What I have tried:

I tried code that I wrote..When I scroll button's position changes..