diff --git a/SOPE/NGCards/ChangeLog b/SOPE/NGCards/ChangeLog
index fb4d15e83..3c45fc14d 100644
--- a/SOPE/NGCards/ChangeLog
+++ b/SOPE/NGCards/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-09  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* iCalEvent.m (-propertyValue:): new method that accept a
+	key-based method invocation.
+
 2010-03-22  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* iCalTimeZonePeriod.m (_occurenceForDate:byRRule:): fixed
diff --git a/SOPE/NGCards/iCalEvent.h b/SOPE/NGCards/iCalEvent.h
index 576b5f79d..0dabe1806 100644
--- a/SOPE/NGCards/iCalEvent.h
+++ b/SOPE/NGCards/iCalEvent.h
@@ -72,6 +72,8 @@
 
 - (iCalEventChanges *) getChangesRelativeToEvent: (iCalEvent *) _event;
 
+- (id) propertyValue: (NSString *) property;
+
 @end 
 
 #endif /* __NGCards_iCalEvent_H__ */
diff --git a/SOPE/NGCards/iCalEvent.m b/SOPE/NGCards/iCalEvent.m
index 050f9d9d6..3bbde5c50 100644
--- a/SOPE/NGCards/iCalEvent.m
+++ b/SOPE/NGCards/iCalEvent.m
@@ -19,6 +19,8 @@
   02111-1307, USA.
 */
 
+#import <Foundation/NSDictionary.h>
+
 #import <NGExtensions/NSCalendarDate+misc.h>
 #import <NGExtensions/NGCalendarDateRange.h>
 
@@ -262,4 +264,26 @@
                            toEvent: self];
 }
 
+- (id) propertyValue: (NSString *) property
+{
+  static NSDictionary *propertyMethods = nil;
+  NSString *method;
+
+  if (!propertyMethods)
+    {
+      propertyMethods = [NSDictionary dictionaryWithObjectsAndKeys:
+                                        @"durationAsTimeInterval", @"duration",
+                                      @"recurrenceRules", @"rrule",
+                                      @"exceptionRules", @"exrule",
+                                      @"exceptionDates", @"exdate",
+                                      nil];
+      [propertyMethods retain];
+    }
+  method = [propertyMethods objectForKey: property];
+  if (!method)
+    method = property;
+
+  return [self performSelector: NSSelectorFromString (method)];
+}
+
 @end /* iCalEvent */