Authors CurseForge

Quote from Showside

How can I refresh a menu on the fly?
I have a menu button which is a checkbox and has an arrow. In the submenu, I can chose something. When you do, the check has to be checked in the 'parent' button...

local function RefreshMenu(menu)
	if UIDROPDOWNMENU_OPEN_MENU == menu and DropDownList1:IsShown() then
		local menuLevel, frame = UIDROPDOWNMENU_MENU_LEVEL
		for level = 2, menuLevel do
			frame = _G['DropDownList' .. level]
			if not (frame and frame:IsShown()) then
				menuLevel = level - 1
				break
			end
		end
		CloseDropDownMenus()
		if menu.point ~= 'cursor' then
			ToggleDropDownMenu(1, nil, menu, menu.relativeTo or 'UIParent')
		else
			ToggleDropDownMenu(1, nil, menu, 'cursor', menu.xOffset, menu.yOffset)
		end
		if DropDownList1:IsShown() then
			local button, _
			for level = 2, menuLevel do
				frame = _G['DropDownList' .. level]
				_, button = frame:GetPoint()
				if button and button.hasArrow then
					ToggleDropDownMenu(level, button.value, nil, nil, nil, nil, nil, button)
					if frame.numButtons == 0 then
						break
					end
				end
			end
			return true
		end
	end
end

Quote from Xinhuan

That is a different issue and has been longstanding. As long as you don't use "Set Focus" from the menu in unit frames, taint is irrelevant. So many addons use UIDropDownMenu that this isn't really a valid reason for your addon not to use one.