MQL5 ReferenceStandard LibraryPanels and DialogsCRadioGroupRowState CreateOnEventAddItemValueCreateButtonOnVScrollShowOnVScrollHideOnScrollLineDownOnScrollLineUpOnChangeItemRedrawRowStateSelect RowState Changes the state of an item. bool RowState( const int index, // index const bool select // state ) Parameters index [in] Item index to change. select [in] New state. Return Value true - successful, otherwise - false. Redraw Select