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    <p>5 ways to do it here:</p> <p>1) Let the Search View Controller be the delegate of action in the Search Type View Controller, so that when the user selects a search type, it will be informed. Use protocol for proper check at compile time if you want, and remember to use assign instead of retain for the delegate, to avoid circular reference.</p> <p>2) Set the UINavigationController delegate to Search View Controller (or whatever class you want to control it), and listen to the event when the Search Type View Controller is popped out.</p> <p>3) Implement a "refresh" function in viewWillAppear: as suggested above, but this is not recommended, because the implementation of viewWillAppear: sucks and not reliable at all. Maybe good for simple app, but when the structure of your app gets complicated, forget it.</p> <p>4) Use NSNotificationCenter. Your Search View Controller will observe all changes to search criteria, and in each child view controller, when the user changes it, post a notification. This is more complicated, but much more powerful and flexible than all the methods above.</p> <p>5) Similarly, you can use Core Data to store all search criteria in an object, and listen to changes in that object using KVO. This is a bit more advanced and may be overkill, but if you know KVO, it makes life much easier in Objective C, so probably worth taking a look anyway.</p> <p>Btw: It's good to do all the UI by hand coding to understand the concepts at first, but try to move to Interface Builder whenever you can. It is a much recommended way to work (there are countless threads on this in Stackoverflow or on the web, with more elaborated discussions on why IB is better).</p>
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    1. USEnzo Tran
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    1. COThanks a lot - Really appreciate all the help while learning :)
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    2. COWould you by any chance have a few links for some of the better articles on the subject of IB vs manual UI?
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    3. COJeff La Marche (one of the best blogger for iPhone dev imo) has a good post about it: http://iphonedevelopment.blogspot.com/2009/10/dont-fear-interface-builder.html. But be aware that Interface Builder has a really steep learning curve, and may be very confusing at first, but don't give up too easily. If you are going to work on iPhone (or Mac) development for a long time, then it will pay off greatly.
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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