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Document Library fluent API 4.4 issue

  • Document Library fluent API 4.4 issue
  • Hi Everyone,

    I have this method working fine in version 4.1 SP3,
    but will throw the exception below when in version 4.4

            public static string GetDocumentUrl(string library, string docName)
                string r = string.Empty;
                var lib = App.WorkWith().DocumentLibraries().Where(l => l.Title == library).Get().FirstOrDefault();
                if (lib != null)
                    var doc = lib.Documents.Where(d => d.Title == docName).FirstOrDefault();
                    if (doc != null)
                        r = doc.MediaUrl;
                return r;

    exception is :

    System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
       at Telerik.Sitefinity.Modules.Libraries.MediaContentExtensions.ResolveMediaUrl(MediaContent mediaContent, Boolean resolveAsAbsoluteUrl)
       at Telerik.Sitefinity.Abstractions.AppSettings.GetMediaItemUrl(MediaContent media)
       at Telerik.Sitefinity.Libraries.Model.MediaContent.get_MediaUrl()

    Any insight would be appreciated.

    EDIT: the method returns an empty string fine when the document does not exist in the Library, but the exception if the document exists.
  • Hello Ernesto,

    I have taken your code and modified it a bit, since it was returning an object reference error. Please check the following code sample as well as the changes I have made to your code:

    protected void Page_Load(object sender, EventArgs e)
               GetDocumentUrl("text", "Default Library");
           public static string GetDocumentUrl(string docName, string libName)
               string r = string.Empty;
               LibrariesManager docManager = LibrariesManager.GetManager();
               DocumentLibrary library = docManager.GetDocumentLibraries().Where(l => l.Title == libName).FirstOrDefault();
               if (library != null)
                   var doc = docManager.GetDocuments().Where(d => d.Title == docName).FirstOrDefault();
                   if (doc != null)
                       //Will return the resolved absolute URL
                       var docUrl = doc.Url;
                       //Will return the default relative URL (i.e. /documentsroot/library/document
                       var docUrl1 = doc.Urls.Where(u => u.RedirectToDefault == false).SingleOrDefault().Url;
                       //Will return the properly resolved document mediaUrl. You can use doc.ResolveMediaUrl() and pass a boolean parameter to it
                       //that will tell it to rerutn absolute or relative Url. By default it returns resolved absolute URL
                       var docUrl2 = doc.MediaUrl;
                       r = docUrl2;
               return r;

    I have added couple of new variables, when getting the document. For example docUrl1 returns the relative url to the item where docUrl = docUrl2.

    Victor Velev
    the Telerik team
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  • Thanks Victor, using the LibrariesManager did the trick.