From 3e1e120dbfbde806bcc0331479d28ce2a0bc2dbf Mon Sep 17 00:00:00 2001
From: xue <>
Date: Mon, 9 Apr 2007 03:32:50 +0000
Subject: Added getDataChanged() to IPostBackDataHandler

---
 framework/Web/UI/WebControls/TListBox.php | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'framework/Web/UI/WebControls/TListBox.php')

diff --git a/framework/Web/UI/WebControls/TListBox.php b/framework/Web/UI/WebControls/TListBox.php
index c49e2561..6112915f 100644
--- a/framework/Web/UI/WebControls/TListBox.php
+++ b/framework/Web/UI/WebControls/TListBox.php
@@ -38,6 +38,8 @@ Prado::using('System.Web.UI.WebControls.TListControl');
  */
 class TListBox extends TListControl implements IPostBackDataHandler, IValidatable
 {
+	private $_dataChanged=false;
+
 	/**
 	 * Adds attribute name-value pairs to renderer.
 	 * This method overrides the parent implementation with additional list box specific attributes.
@@ -99,7 +101,7 @@ class TListBox extends TListControl implements IPostBackDataHandler, IValidatabl
 				if($this->getSelectedIndex()!==$index)
 				{
 					$this->setSelectedIndex($index);
-					return true;
+					return $this->_dataChanged=true;
 				}
 				else
 					return false;
@@ -127,13 +129,16 @@ class TListBox extends TListControl implements IPostBackDataHandler, IValidatabl
 			else
 				$flag=true;
 			if($flag)
+			{
 				$this->setSelectedIndices($list);
+				$this->_dataChanged=true;
+			}
 			return $flag;
 		}
 		else if($this->getSelectedIndex()!==-1)
 		{
 			$this->clearSelection();
-			return true;
+			return $this->_dataChanged=true;
 		}
 		else
 			return false;
@@ -153,6 +158,16 @@ class TListBox extends TListControl implements IPostBackDataHandler, IValidatabl
 		$this->onSelectedIndexChanged(null);
 	}
 
+	/**
+	 * Returns a value indicating whether postback has caused the control data change.
+	 * This method is required by the IPostBackDataHandler interface.
+	 * @return boolean whether postback has caused the control data change. False if the page is not in postback mode.
+	 */
+	public function getDataChanged()
+	{
+		return $this->_dataChanged;
+	}
+
 	/**
 	 * @return boolean whether this control allows multiple selection
 	 */
-- 
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