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    <p><strong>Use of Component Behavior</strong> </p> <p>A component supports the <a href="http://en.wikipedia.org/wiki/Mixin" rel="nofollow">mixin</a> pattern and can be attached with one or several behaviors. A behavior is an object whose methods can be 'inherited' by its attached component through the means of collecting functionality instead of specialization (i.e., normal class inheritance). A component can be attached with several behaviors and thus achieve 'multiple inheritance'.</p> <p>Behavior classes must implement the <code>IBehavior</code> interface. Most behaviors can extend from the <code>CBehavior</code> base class. If a behavior needs to be attached to a model, it may also extend from <a href="http://www.yiiframework.com/doc/api/1.1/CModelBehavior" rel="nofollow">CModelBehavior</a> or <a href="http://www.yiiframework.com/doc/api/1.1/CActiveRecordBehavior" rel="nofollow">CActiveRecordBehavior</a> which implements additional features specifc for models.</p> <p>To use a behavior, it must be attached to a component first by calling the behavior's <code>attach()</code> method. Then we can call a behavior method via the component:</p> <pre><code>// $name uniquely identifies the behavior in the component $component-&gt;attachBehavior($name,$behavior); // test() is a method of $behavior $component-&gt;test(); </code></pre> <p>An attached behavior can be accessed like a normal property of the component. For example, if a behavior named tree is attached to a component, we can obtain the reference to this behavior object using:</p> <pre><code>$behavior=$component-&gt;tree; // equivalent to the following: // $behavior=$component-&gt;asa('tree'); </code></pre> <p>A behavior can be temporarily disabled so that its methods are not available via the component. For example,</p> <pre><code>$component-&gt;disableBehavior($name); // the following statement will throw an exception $component-&gt;test(); $component-&gt;enableBehavior($name); // it works now $component-&gt;test(); </code></pre> <p>It is possible that two behaviors attached to the same component have methods of the same name. In this case, the method of the first attached behavior will take precedence.</p> <p>When used together with <a href="http://www.yiiframework.com/doc/guide/1.1/en/basics.component#component-event" rel="nofollow">events</a>, behaviors are even more powerful. A behavior, when being attached to a component, can attach some of its methods to some events of the component. By doing so, the behavior gets a chance to observe or change the normal execution flow of the component.</p> <p>A behavior's properties can also be accessed via the component it is attached to. The properties include both the public member variables and the properties defined via getters and/or setters of the behavior. For example, if a behavior has a property named xyz and the behavior is attached to a component $a. Then we can use the expression <code>$a-&gt;xyz</code> to access the behavior's property.</p> <p>More reading:<br> <a href="http://www.yiiframework.com/wiki/44/behaviors-events" rel="nofollow">http://www.yiiframework.com/wiki/44/behaviors-events</a><br> <a href="http://www.ramirezcobos.com/2010/11/19/how-to-create-a-yii-behavior/" rel="nofollow">http://www.ramirezcobos.com/2010/11/19/how-to-create-a-yii-behavior/</a></p>
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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.

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