On Aug 26, 2010, at 10:41 AM, k...@highrolls.net wrote:

> I have an accessory view in an NSOpenPanel which contains a NSComboBox. The 
> combo box is a list of file extensions.  When the user selects an entry the 
> action method calls --setAllowedFileTypes. All these mechanics work properly. 
>  The issue: The open panel does not respond to the new allowed file types.

What do you mean "does not respond"?
Is it not drawing right? Try calling -validateVisibleColumns. 

corbin

> 
> What I am trying to accomplish is a dynamic filter as we see in a Windows 
> open file dialog.
> 
> Am I barking up the wrong or impossible tree here?
> 
> 
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