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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=81314 --- shadow/81314 2007-04-04 20:55:27.000000000 -0400 +++ shadow/81314.tmp.24371 2007-04-04 20:55:27.000000000 -0400 @@ -0,0 +1,74 @@ +Bug#: 81314 +Product: Mono: Class Libraries +Version: 1.2 +OS: +OS Details: +Status: NEW +Resolution: +Severity: +Priority: Normal +Component: Sys.Web +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: SiteMapNode.GetStartNode error [w/ fix] + +This method throws a NRE when you specify a SiteMapDataSource on a +page/control that is configured such that + +StartFromCurrentNode="true" +ShowStartingNode="true" +StartingNodeOffset="-1" + +The error expresses itself when the current url is not defined in the +sitemap. The problem is that with this set of conditions, a local variable +to reference the starting node is set to Provider.CurrentNode (which is +null). This then goes on to cause the following stack trace: + + +System.NullReferenceException: Object reference not set to an instance of +an object + at System.Web.UI.WebControls.SiteMapDataSource.GetStartNode +(System.String viewPath) [0x00000] + at System.Web.UI.WebControls.SiteMapDataSource.GetView (System.String +viewName) [0x00000] + at +System.Web.UI.WebControls.SiteMapDataSource.System.Web.UI.IDataSource.GetView +(System.String viewName) [0x00000] + at System.Web.UI.WebControls.Repeater.ConnectToDataSource () [0x00000] + at System.Web.UI.WebControls.Repeater.Initialize () [0x00000] + at System.Web.UI.WebControls.Repeater.OnPagePreLoad (System.Object +sender, System.EventArgs e) [0x00000] + at (wrapper delegate-invoke) +System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs) + at (wrapper delegate-invoke) +System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs) + at System.Web.UI.Page.OnPreLoad (System.EventArgs e) [0x00000] + at System.Web.UI.Page.InternalProcessRequest () [0x00000] + at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) +[0x00000] + + +The fix that works on my system is the following, as you can see it just +returns Provider.RootNode when it detects a null starting node: + + +Index: System.Web.UI.WebControls/SiteMapDataSource.cs +=================================================================== +--- System.Web.UI.WebControls/SiteMapDataSource.cs (revision 75379) ++++ System.Web.UI.WebControls/SiteMapDataSource.cs (working copy) +@@ -198,6 +198,11 @@ + else + starting_node = Provider.RootNode; + ++ if(starting_node == null) ++ { ++ return Provider.RootNode; ++ } ++ + int i; + if (StartingNodeOffset < 0) { + for (i = StartingNodeOffset; i < 0; i ++) { _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
