1 files changed, 41 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TDataBoundControl.php b/framework/Web/UI/WebControls/TDataBoundControl.php
index 6e1d1003..b043060d 100644
--- a/framework/Web/UI/WebControls/TDataBoundControl.php
+++ b/framework/Web/UI/WebControls/TDataBoundControl.php
@@ -542,4 +542,45 @@ class TListItemType extends TEnumerable
 	const Pager='Pager';
 }
 
+
+/**
+ * IItemDataRenderer interface.
+ *
+ * IItemDataRenderer defines the interface that an item renderer
+ * needs to implement. Besides the {@link getData Data} property, a list item
+ * renderer also needs to provide {@link getItemIndex ItemIndex} and
+ * {@link getItemType ItemType} property.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id$
+ * @package System.Web.UI.WebControls
+ * @since 3.1.0
+ */
+interface IItemDataRenderer extends IDataRenderer
+{
+	/**
+	 * Returns a value indicating the zero-based index of the item in the corresponding data control's item collection.
+	 * If the item is not in the collection (e.g. it is a header item), it returns -1.
+	 * @return integer zero-based index of the item.
+	 */
+	public function getItemIndex();
+
+	/**
+	 * Sets the zero-based index for the item.
+	 * If the item is not in the item collection (e.g. it is a header item), -1 should be used.
+	 * @param integer zero-based index of the item.
+	 */
+	public function setItemIndex($value);
+
+	/**
+	 * @return TListItemType the item type.
+	 */
+	public function getItemType();
+
+	/**
+	 * @param TListItemType the item type.
+	 */
+	public function setItemType($value);
+}
+
 ?>
 \ No newline at end of file