Databases
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    <p>This is not a safe way to be passing information between controllers. If you are using this in your application, and it's working, I am actually very surprised.</p> <p>The proper way to do this is to actually pass the value you need from one controller to the other. The example below uses the Application Delegate to store the value, and then each controller reads/writes to it... <strong>it's just an example, be careful about about using the Application Delegate as a repository for what become effectively global variables</strong>. Setting up lots of variables in the Application Delegate for use in this manner will make your application difficult to maintain.</p> <p>In your App Delegate.h</p> <pre><code>@interface AppDelegate : NSObject &lt;UIApplicationDelegate&gt; { int sharedInt; } @property int sharedInt; </code></pre> <p>In your App Delegate.m</p> <pre><code>@synthesize sharedInt; // this will automatically create the getters and setters </code></pre> <p>Then in the controller where you want to set the value:</p> <pre><code>ApplicationDelegateClassNameHere * applicationDelegate = [[ UIApplication sharedApplication] delegate]; applicationDelegate.sharedInt = 3; </code></pre> <p>Then in the controller where you want to read the value:</p> <pre><code>ApplicationDelegateClassNameHere * applicationDelegate = [[ UIApplication sharedApplication] delegate]; if (applicationDelegate.sharedInt == 3) { //do your stuff here } </code></pre> <p><strong>Edited</strong>: forgot the @synthesize.<br> <strong>Edited</strong>: typed the return from the delegate singleton method, based on a suggestion from Kenneth Ballenegger, to eliminate the compiler warnings.</p>
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    1. COThanks for the detailed answer since I am new to this the complete code really helps. I did implement this and it works great. Thanks,
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Guidance
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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