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Re: Core Data & Bindings: Non-string types in an NSTableView
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Re: Core Data & Bindings: Non-string types in an NSTableView


  • Subject: Re: Core Data & Bindings: Non-string types in an NSTableView
  • From: Mike Abdullah <email@hidden>
  • Date: Wed, 18 Apr 2007 14:02:55 +0100

Two options off the top of my head:

*Add an NSNumberFormatter or NSDateFormatter to the column. They're in the text section of IB.
*Write your own NSValueTransformer to convert strings to dates.


Mike.

On 18 Apr 2007, at 13:55, Kevin Hoffman wrote:

Folks,

I'm sure this qualifies as a "newbie" question, but I'll ask anyway. I
was looking at the videos of the Core Data tutorial and I noticed that
none of the tabular items being bound were anything but strings.




I have a situation where I have an entity that has a Date column and an
Int32 column. I set up the bindings using Core Data, set up a controller
- everything works fine when I set the data types to string. However,
when I set the data types in the model to what they should be, I keep
getting errors from the GUI indicating that it was an inappropriate type
(e.g. "string" when expecting an NSCFDate etc).




I have tried dragging a datepicker cell into the cell in the tableview,
but that doesn't quite do the trick. Also, I can't figure out how to
deal with the cell that I want to allow me to enter integers. I type in,
say, "200", then hit tab to commit that cell, and then I see the error
in the Console log showing that it got the string "200" instead of the
number 200.




I'm sure there's a simple solution to this - can anyone tell me what
step I'm missing to get my table to allow me to pick dates (hopefully
from a pop-up calendar, or at least default to today's date) and enter
numbers directly into the table?



Thanks,

                Kevin

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 >Core Data & Bindings: Non-string types in an NSTableView (From: "Kevin Hoffman" <email@hidden>)

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