NSTableDataSource and Key-value Coding
NSTableDataSource and Key-value Coding
- Subject: NSTableDataSource and Key-value Coding
- From: Randy Bradley <email@hidden>
- Date: Mon, 14 Mar 2005 14:20:23 -0600
Hi All,
I'm adding a couple of NSTableViews to my application and I'm having some difficulties. I'm currently reading Aaron Hillegass's "Cocoa Programming for Mac OS X"
First Edition. I'm a random access reader so I may have missed a crucial tidbit somewhere, but I'm pretty much building from his example in chapter 5.
So, my application compiles fine but I get the following run time errors:
2005-03-14 13:43:36.097 Weights[1081] [<Animal 0x345880> valueForUndefinedKey:]: this class is not key value coding-compliant for the key (null).
*** malloc[1081]: Deallocation of a pointer not malloced: 0xbfffe130; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug
*** malloc[1081]: Deallocation of a pointer not malloced: 0xbfffe2a0; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug
I set an identifier for each column in Interface Builder with the same name as the instance variables in my class.
My document window doesn't show up until I switch to another application, then back to my application. Then the document window shows up with the data in the table, however, I cannot select rows or click buttons elsewhere in the window.
Do I need to do something to make my "Animal" object key-value coding compliant?
Thanks for any ideas,
Randy
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