How to nest Menu Ring control

[NI Nubie]

I have a menu ring that when I select a menu item I need to select a sub list of items.

How can this be done?

i.e. Item2 has additional items to choose:

Menu Ring

Item1

Item2

Item3

Item4

Item2 Menu

ItemA

ItemB

ItemC

[CharlieRodway]

Hi NI Nubie,

If you wanted to do it all in one Menu Ring, you could dynamically repopulate the list items to display the sub options.  Not very graceful, as you end up hardcoding the menu items, but it just might do the job.

I've attached a quick example I've knocked up to show you.

[Al_S]

Charlie showed a neat way of doing it, but if you would rather design your menu ring using the UI Editor, you can create a second ring for your Item2 submenu, and edit the control to be Initially Hidden.  In your main() function, before you display the panel, move the submenu to the same location as the main menu.  You could do this in the UI editor as well, but then you would have to move one to get to the other, and someone else working on your project may not know that there are two controls on top of each other.

In your callback for the main menu, if item 2 is selected, make the main menu invisible and make the submenu visible.  In your submenu, include a menu option to Return to main menu.  In the submenu callback, if the Return item is selected, make the submenu invisible and make the main menu visible.

I have attached a sample project doing that.

Message Edited by Al S on 09-09-2009 12:36 PM

[RobertoBozzolo]

A better solution to this question in my opinion is showing a real menu bar (which can hold several nesting levels, if needed) with RunPopupMenu: the menu bar can be loaded at runtime without need for it to be shown on the panel; RunPopupMenu dynamically displays it where the user clicks; the return code from the function can be tested against menu item constants to detect which element the user has selected.

Look at the attached example.

[CharlieRodway]

Roberto,

Great idea, using the menu bar popup!

I've taken this and adapted my example to store the mouse x,y on left click and call the pop-up when Item 2 is selected.

[CharlieRodway]

Updated, as I'd posted my development code

[CharlieRodway]

Updated:

• now updates the Ring text/value with the selection from the Menu Bar popup
• reverts to previous selection if the popup loses focus
• code comments
• executable in zip

[jared]

Here is another example using a menubar with sub menus and the ring control. Hopefully it is helpful.

[NI Nubie]

Hi Roberto.

I like your solution and will use it in the future but for this particulat menu ring I need to display the selction after it is made.

The menu rung displays test selections and then displays the selection while the test runs.

There are 32 selections with one selection requiring the sub-selection feature.

Thanks.

[NI Nubie]

Hi Roberto.

On second thought I could put a text control item beside the button and just copy the selected test message to the text control item.