[Mono-bugs] [Bug 81771][Wis] Changed - Null object reference after ListControl.DataSource is set to null

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Changed by albright at wesay.org.

http://bugzilla.ximian.com/show_bug.cgi?id=81771

--- shadow/81771	2007-07-11 23:51:19.000000000 -0400
+++ shadow/81771.tmp.14193	2007-07-12 00:29:55.000000000 -0400
@@ -63,6 +63,13 @@
 
 if (data_source == null) {
 	data_manager = null;
 	return;
 }
 
+
+------- Additional Comments From albright at wesay.org  2007-07-12 00:29 -------
+Actually even with the above code, it still fails, since
+ConnectToDataSource gets called twice with the same data_source (thus
+registering the events twice but only deregistering them once), once
+from the DataSource getter and once from OnBindingContextChanged
+(triggered in the BindingContext getter in ConnectToDataSource).