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/THiddenField.php | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

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

diff --git a/framework/Web/UI/WebControls/THiddenField.php b/framework/Web/UI/WebControls/THiddenField.php
index acead9f0..c206e65b 100644
--- a/framework/Web/UI/WebControls/THiddenField.php
+++ b/framework/Web/UI/WebControls/THiddenField.php
@@ -25,6 +25,8 @@
  */
 class THiddenField extends TControl implements IPostBackDataHandler, IValidatable, IDataRenderer
 {
+	private $_dataChanged=false;
+
 	/**
 	 * @return string tag name of the hidden field.
 	 */
@@ -85,10 +87,20 @@ class THiddenField extends TControl implements IPostBackDataHandler, IValidatabl
 		else
 		{
 			$this->setValue($value);
-			return true;
+			return $this->_dataChanged=true;
 		}
 	}
 
+	/**
+	 * 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;
+	}
+
 	/**
 	 * Returns the value to be validated.
 	 * This methid is required by IValidatable interface.
-- 
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