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diff --git a/framework/Web/UI/WebControls/TAccordionViewCollection.php b/framework/Web/UI/WebControls/TAccordionViewCollection.php
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+<?php
+/**
+ * TAccordion class file.
+ *
+ * @author Gabor Berczi, DevWorx Hungary <gabor.berczi@devworx.hu>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package System.Web.UI.WebControls
+ * @since 3.2
+ */
+
+/**
+ * Class TAccordionViewCollection.
+ *
+ * TAccordionViewCollection is a collection of {@link TAccordionView} to be used inside a {@link TAccordion}.
+ *
+ * @author Gabor Berczi, DevWorx Hungary <gabor.berczi@devworx.hu>
+ * @package System.Web.UI.WebControls
+ * @since 3.2
+ */
+class TAccordionViewCollection extends TControlCollection
+{
+ /**
+ * Inserts an item at the specified position.
+ * This overrides the parent implementation by performing sanity check on the type of new item.
+ * @param integer the speicified position.
+ * @param mixed new item
+ * @throws TInvalidDataTypeException if the item to be inserted is not a {@link TAccordionView} object.
+ */
+ public function insertAt($index,$item)
+ {
+ if($item instanceof TAccordionView)
+ parent::insertAt($index,$item);
+ else
+ throw new TInvalidDataTypeException('tabviewcollection_tabview_required');
+ }
+
+ /**
+ * Finds the index of the accordion view whose ID is the same as the one being looked for.
+ * @param string the explicit ID of the accordion view to be looked for
+ * @return integer the index of the accordion view found, -1 if not found.
+ */
+ public function findIndexByID($id)
+ {
+ foreach($this as $index=>$view)
+ {
+ if($view->getID(false)===$id)
+ return $index;
+ }
+ return -1;
+ }
+}