How do I set forecolor for specific rows dynamically in MS Flex Grid

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C++

if(!(strcmp(OilCompany,key)))
                    {
                        for(int col=0;col<=5;col++)
                        {
                            m_ViewFan.SetCol(col);
                            m_ViewFan.SetCellForeColor(RGB(255,155,0));
                        }
                    }
                    else if(!(strcmp(OilCompany,key1)))
                    {
                        for(int col=0;col<=5;col++)
                        {
                            m_ViewFan.SetCol(col);
                            m_ViewFan.SetCellForeColor(RGB(0,51,102));
                        }
                    }

total number of columns is 5, row =300. but i need dynamic changes for setting fore color for some rows. help me..