macOS NSPopupButton selected item

Dreamspinner · Dec 17, 2012

In my OS X Cocoa app, I'm using an NSPopupButton to present the user with a list of choices. When an item is selected, it isn't marked.

Code:

  [baudButton removeAllItems];
  [baudButton addItemWithTitle:(@"Baud")];
  [baudButton addItemWithTitle:(@"600")];
  [baudButton addItemWithTitle:(@"1200")];

How to fix it?

Red Menace · Dec 17, 2012

I am going to guess you are talking about a checkmark - for that, you can set the state of the NSMenuItem.

mfram · Dec 17, 2012

You could try to jump start the process.

Code:

[baudButton selectItemAtIndex:1]

Later you can read the state with:

Code:

[baudButton indexOfSelectedItem]

Also, make sure you made a connection to the right thing with Xcode. You could have made a connection to a specific cell instead of the whole pop-up button.

Dreamspinner · Dec 17, 2012

Red Menace said:
I am going to guess you are talking about a checkmark - for that, you can set the state of the NSMenuItem.

Thanks. Yes, a check mark would be good. I'll have to dig into how to use ValidateMenuItem I think. It seems like it's going to be a little messy if the user changes selection, and I have to find the checked item and un-set it, the set the new one. I sort of bogggled that it doesn't happen automagically

. But I'm a newbie to Cocoa.

Dreamspinner · Dec 17, 2012

mfram said:
You could try to jump start the process.

Code:

[baudButton selectItemAtIndex:1]

Later you can read the state with:

Code:

[baudButton indexOfSelectedItem]

Also, make sure you made a connection to the right thing with Xcode. You could have made a connection to a specific cell instead of the whole pop-up button.

Thanks. I think we have a misunderstanding

. I have no problem getting the selected menu item. I want to mark it as selected (check mark, change color, highlight the item).

The connection is to the whole button.

Red Menace · Dec 17, 2012

It seems like it's going to be a little messy if the user changes selection, and I have to find the checked item and un-set it, the set the new one. I sort of bogggled that it doesn't happen automagically

There can be multiple checked items (and ways to use them), so what gets checked (or not) is up to you. For a single item you would be keeping track of the selection anyway, so typically your action would uncheck the current/old setting and check the new one - see Using Menu Item States.

Dreamspinner · Dec 18, 2012

Red Menace said:
There can be multiple checked items (and ways to use them), so what gets checked (or not) is up to you. For a single item you would be keeping track of the selection anyway, so typically your action would uncheck the current/old setting and check the new one - see Using Menu Item States.

Thanks for the URL. I'm sure that will come in handy!

There are multiple items. Actually, setting the NSButton's type to popup accomplished my goal.

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macOS NSPopupButton selected item

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