How to delete navigation nodes with AuthoringLink types programmatically in Sharepoint

If you use structural navigation on your publishing Sharepoint site and navigation nodes are created as headings (NodeType = Heading), then it is quite straightforward to delete such navigation nodes programmatically. Here is how it can be done:

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var web = ... var pweb = PublishingWeb.GetPublishingWeb(web); var globalNavigation = pweb.Navigation.GlobalNavigationNodes; var nodePage = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => (n.Title == "Test")); if (nodePage != null) {     nodePage.Delete(); }

In this example we delete navigation node with title “Test”. However if you will try to delete navigation nodes which were created as AuthoredLink* (see NodeTypes Enum):

• AuthoredLink
• AuthoredLinkPlain
• AuthoredLinkToPage
• AuthoredLinkToWeb

using the same code you will find that link is not get deleted. The workaround is to change NodeType property first to Heading and then delete the node:

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var web = ... var pweb = PublishingWeb.GetPublishingWeb(web); var globalNavigation = pweb.Navigation.GlobalNavigationNodes; var nodePage = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => (n.Title == "Test" &&     (n.Properties != null && n.Properties["NodeType"] != null && n.Properties["NodeType"] is string &&         (n.Properties["NodeType"] as string == "AuthoredLink" || (n.Properties["NodeType"] as string).StartsWith("AuthoredLink"))));   if (nodePage != null) {     nodePage.Properties["NodeType"] = "Heading";     nodePage.Update();       // reinitialize navigation nodes     pweb = PublishingWeb.GetPublishingWeb(web);     globalNavigation = pweb.Navigation.GlobalNavigationNodes;     nodePage = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => (n.Title == "Test);     if (nodePage != null)     {         nodePage.Delete();     } }

After that AuthoredLink navigation node will be successfully deleted.