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Re: ArrayController Out of Bounds
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Re: ArrayController Out of Bounds


  • Subject: Re: ArrayController Out of Bounds
  • From: "Gerriet M. Denkmann" <email@hidden>
  • Date: Wed, 4 Jun 2008 22:19:47 +0700


On 4 Jun 2008, at 21:50, Shawn Erickson wrote:

On Wed, Jun 4, 2008 at 6:18 AM, Gerriet M. Denkmann
<email@hidden> wrote:

When this table contains some rows and I click on the table column header I
always get:
*** -[NSCFArray objectAtIndex:]: index (-1) beyond bounds (5)
where 5 is the correct number of rows displayed.


What am I doing wrong?
This is on Tiger 10.4.11

Need to see some code likely... Are you using a data source? or controller layer (bindings)?
Bindings.

You can set a break point on the above method and make it conditional on the index being -1 to see the code path that is hitting this. Also I think that is an exception so you can set a break point on ... humm sorry cannot recall the low level throw method on 10.4 (not enough coffee yet).

I used a breakpoint on: -[NSException raise]

and found the error in my own code:

- (IBAction)tableClicked: sender;
{
int clickedRow = [ sender clickedRow ];
if ( clickedRow < 0 ) return; // clicked in column header <--- this line was missing
id arrangedObjects = [ tableArrayController arrangedObjects ];
NSMetadataItem *item = [ arrangedObjects objectAtIndex: clickedRow ]; <--- raised exception


I should have thought of the debugger before asking here.
Sorry for the noise!

Kind regards

Gerriet.

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References: 
 >ArrayController Out of Bounds (From: "Gerriet M. Denkmann" <email@hidden>)
 >Re: ArrayController Out of Bounds (From: "Shawn Erickson" <email@hidden>)

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