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Re: Master-detail interface, multiple selection, and mixed state checkbox state transitions
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Re: Master-detail interface, multiple selection, and mixed state checkbox state transitions


  • Subject: Re: Master-detail interface, multiple selection, and mixed state checkbox state transitions
  • From: "Sean McBride" <email@hidden>
  • Date: Wed, 15 Apr 2009 16:42:03 -0400
  • Organization: Rogue Research Inc.

On 4/15/09 2:58 PM, I. Savant said:

>> The problem is that clicking the checkbox, as per documentation, "cycles
>> through [the 3 states] in this order: on, off, mixed, on, and so
>> forth."  But I don't want the user to be able to choose 'mixed state'.
>> I want this transition:
>
>  Google "NSButton bindings" to get the bindings reference. The
>"value" key says:
>
>"If the value binding represents a multiple value selection, and both
>YES and NO values are represented in the bound key, the button is
>temporarily set to allow mixed states if it doesn't already. If the
>button is already configured to allow mixed states, the setting is
>unchanged."
>
>  So ... I gather from this that if you have the button (in IB) set to
>*not* allow mixed state, the behavior you want should be what you get.

Indeed.  Thanks for the reference.

>Is this not the case?

Correct.  But as you say, it seems that it should do that.  So I created
a test app and it behaves as expected there.  I added a 2nd checkbox in
my real app and bound it identically.  That one works, and the other
does not.  I compared every option in IB between the 2 checkboxes, and
there is no difference!  Oh well, at least it's 'solved'.

Thanks!

--
____________________________________________________________
Sean McBride, B. Eng                 email@hidden
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada


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    • Re: Master-detail interface, multiple selection, and mixed state checkbox state transitions
      • From: "I. Savant" <email@hidden>
References: 
 >Master-detail interface, multiple selection, and mixed state checkbox state transitions (From: "Sean McBride" <email@hidden>)
 >Re: Master-detail interface, multiple selection, and mixed state checkbox state transitions (From: "I. Savant" <email@hidden>)

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