Apple

On Jun 4, 2005, at 9:06 PM, Lee Morgan wrote:

On Jun 4, 2005, at 9:53 PM, Jeff Gilbert wrote:

I am upgrading an app to use bindings (I can see I will eliminate a ton of code, yeah!). I try to bind the window title using a Title with Pattern to include an attribute from an object in the window. If I update said attribute, the window title updates nicely. However, when the window first appears, it has the default window title (i.e. the document title). I even tried putting [self synchronizeWindowTitleWithDocumentName] in windowDidLoad but it has no effect. The only way I can make it work is to also override windowTitleForDocumentDisplayName:. Is there something I am missing?

OK, two stabs at this...
1 - If your window's bound value is null you should bind the "NULL Placeholder", might consider binding the "No Selection" value also.

I tried that, but it didn't work for any of No Selection Placeholder, Not Applicable Placeholder or Null Placeholder.

2 - When you change your window's bound value programmatically you should use the following, um.. structure....can't think of the word right now.

[owningObject willChangeValueForKey:@"windowBoundValueKey"];
// Change value here
[owningObject didChangeValueForKey:@"windowBoundValueKey"];

Changing the bound value is not a problem. The only problem is when the window is first shown. However, it may have to do with the timing of the binding being configured. I will investigate when the binding occurs in relation to the window loading. Does anybody know when the title would be set by the title binding?

thanks,

Jeff

References:
	>binding window titles (From: Jeff Gilbert <email@hidden>)
	>Re: binding window titles (From: Lee Morgan <email@hidden>)