Re: Issues with hiding NSTableColumns with autolayout
Re: Issues with hiding NSTableColumns with autolayout
- Subject: Re: Issues with hiding NSTableColumns with autolayout
- From: Ken Thomases <email@hidden>
- Date: Thu, 02 Jul 2015 13:08:12 -0500
On Jul 2, 2015, at 12:25 PM, Jensen, Stephen C. (AFRC-R) <email@hidden> wrote:
>
> The problem occurs when the user hides an NSTableColumn… I start getting errors. For example, when I hide the column with the identifier “orgCode”, I get the following:
>
> 2015-07-02 09:57:30.560 myApp[9975:303] Unable to simultaneously satisfy constraints:
> (
> "<NSLayoutConstraint:0x618000099320 'NSView-Encapsulated-Layout-Width' H:[orgCode(0)] (Names: orgCode:0x60800018bfc0 )>",
> "<NSLayoutConstraint:0x60800028cdf0 H:[NSTextField:0x60800018c160]-(2)-| (Names: orgCode:0x60800018bfc0, '|': orgCode:0x60800018bfc0 )>",
> "<NSLayoutConstraint:0x60800028cee0 H:|-(2)-[NSTextField:0x60800018c160] (Names: orgCode:0x60800018bfc0, '|': orgCode:0x60800018bfc0 )>"
> )
> My first inclination was to delete the constraints, but then the NSTextViews within the table don’t change size with the column… that doesn’t work. Deleting and recreating constraints whenever I hide or show a column also seems to be way too complicated…
You can set one of the constraints relating the text field to its superview to have non-required priority. For example, set the trailing constraint to priority 990. This will allow it be broken (without complaint) if there's absolutely no other recourse, but will maintain it otherwise.
Regards,
Ken
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