function(index, silent) {
        var me = this;

        if (!index) {
            index = 0;
        } else if (!Ext.isNumber(index)) {
            index = Ext.Array.indexOf(me.items, index);
        }
        me.items[index].disabled = false;
        me.up('tablepanel').el.select('.' + Ext.baseCSSPrefix + 'action-col-' + index).removeCls(me.disabledCls);
        if (!silent) {
            me.fireEvent('enable', me);
        }
    }
function(index, silent) {
        var me = this;

        if (!index) {
            index = 0;
        } else if (!Ext.isNumber(index)) {
            index = Ext.Array.indexOf(me.items, index);
        }
        me.items[index].disabled = false;
        me.up('tablepanel').el.select('.' + Ext.baseCSSPrefix + 'action-col-' + index).removeCls(me.disabledCls);
        if (!silent) {
            me.fireEvent('enable', me);
        }
    }
function ( index , silent ) { var me = this ; if ( ! index ) { index = 0 ; } else if ( ! Ext . isNumber ( index ) ) { index = Ext . Array . indexOf ( me . items , index ) ; } me . items [ index ] . disabled = false ; me . up ( 'tablepanel' ) . el . select ( '.' + Ext . baseCSSPrefix + 'action-col-' + index ) . removeCls ( me . disabledCls ) ; if ( ! silent ) { me . fireEvent ( 'enable' , me ) ; } }
Enables this ActionColumn's action at the specified index.
@param {Number/Ext.grid.column.Action} index
@param {Boolean} [silent=false]
Enables this ActionColumn s action at the specified index .