CGridCtrlEx表格及限制表格输入数字和‘.’

CGridCtrlEx m_Grid;
BOOL CDlgFillinTable::SetContentsByNumericCol() 
{
	CCellID currentCell = m_Grid.GetFocusCell();

	CString strContents = m_Grid.GetItemText(currentCell.row,currentCell.col);
	if(strContents.IsEmpty())
		return TRUE;

	CString strText;
	if (m_iSWeightNum == currentCell.col || m_iTWeightNum == currentCell.col || m_iCountNum == currentCell.col)
	{
		for(int i=0 ; i<strContents.GetLength() ; i++)
		{
			if(strContents.GetAt(i) < 46 || strContents.GetAt(i) > 57 || strContents.GetAt(i) == 47)
			{
				m_Grid.SetItemText(currentCell.row,currentCell.col,m_strContents);
				break;
			}
		}

		if ( 1<strContents.Replace(_T("\."),_T("\.")) || 46==strContents.GetAt(0) )//strContents.Find(_T("\."),0);
		{
			m_Grid.SetItemText(currentCell.row,currentCell.col,m_strContents);
		}
	}

	return TRUE;
}