From 07fb71a7fc24a4caecec70288d4167906cdbd09e Mon Sep 17 00:00:00 2001
From: xue <>
Date: Fri, 4 Jan 2008 22:04:50 +0000
Subject: Fixed #744.

---
 HISTORY                                                        | 1 +
 framework/Web/Javascripts/source/prado/activecontrols/ajax3.js | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/HISTORY b/HISTORY
index 76880785..b7166184 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,6 +1,7 @@
 Version 3.1.2 To be released
 ============================
 BUG: Ticket#719 - TAutoCompleter should not trigger Validation if CausesValidation=False (Christophe)
+BUG: Ticket#744 - Callback error handling is improved (Qiang)
 BUG: Ticket#750 - The "expire" parameter is used inconsistently in cache modules (Qiang)
 BUG: Fixed a bug in TPropertyValue::ensureArray() (Qiang)
 CHG: Changed TConditional so that the controls in its template behave like they are in its parent (Qiang)
diff --git a/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js b/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
index e7c7e20f..6fd71948 100644
--- a/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
+++ b/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
@@ -230,7 +230,10 @@ Object.extend(Prado.CallbackRequest,
 		"on500" : function(request, transport, data)
 		{
 			var e = request.getHeaderData(Prado.CallbackRequest.ERROR_HEADER);
-			Logger.error("Callback Server Error "+e.code, this.formatException(e));
+			if (e)
+				Logger.error("Callback Server Error "+e.code, this.formatException(e));
+			else
+				Logger.error("Callback Server Error Unknown",'');
 		},
 
 		/**
-- 
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