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Re: Stupid newbie question...
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Re: Stupid newbie question...


  • Subject: Re: Stupid newbie question...
  • From: Shawn Erickson <email@hidden>
  • Date: Thu, 26 May 2005 15:12:39 -0700


On May 26, 2005, at 3:02 PM, Brian O'Brien wrote:

I have two radio buttons and I can't figure out how to find out which state the set is in...
The object thats passed to my action is an NSMatrix.
I assume this is a matrix of buttons and I guess I'm supposed to be able to go through each one and figure out
which is the currently selected button..
Help?

The programming topic "Matrices" linked from the NSMatrix API docs has a section that talks about "Matrix Selection modes" and in particular...


"NSRadioModeMatrix is used when you want no more than one NSCell to be selected at a time. It can be used to create a set of buttons of which one and only one is selected. (There’s also the option of allowing no button to be selected.) Any time an NSCell is selected, the previously selected NSCell is unselected. This is most commonly used with groups of radio buttons. You might also use it with a group of push buttons that you want to behave like radio buttons."

Knowing the behavior outlined for radio mode matrices use "selectedCell" to get the currently selected cell and then ask that cell for its tag to understand which it is (or various other methods of understanding that).

-Shawn

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