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Problem with Global Navigation Excludes in VS workflow

Posted By:      Posted Date: August 31, 2010    Points: 0   Category :SharePoint
 
Hi All I need help for WSS Global Navigation problem. I have one Visual Studio Workflow. In that I written following code. string globalNavExcludes = String.Empty; SPWeb webSite = MSDNSiteCollection.RootWeb; // _GlobalNavigationExcludes property contains a delimited string of  // GUIDs identifying the Id of each site to be excluded from global // navigation   if (webSite.AllProperties.ContainsKey("__GlobalNavigationExcludes")) {   globalNavExcludes =      webSite.AllProperties["__GlobalNavigationExcludes"].ToString(); }   SPWeb newsSite = MSDNSiteCollection.AllWebs["News"]; // string is delimited "{GUID};{GUID};", // use format code B to convert to string globalNavExcludes += String.Concat(ParentWeb.ID.ToString("B"), ";");   webSite.AllProperties["__GlobalNavigationExcludes"] = globalNavExcludes; webSite.Update(); After run this code workflow, I loss my Home from Navigation. Now I was unable to open my application. It is giving "Error" on the top Navigation in place of Home. Error is: "An error occured while rendering navigation for requested URL: .........url of my workflow site.......Exception Message: An Item with the same Key has already been added. Stack Trace : at System.Throwhelper.ThrowArgumentException(ExceptionResour


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