Document URL property throws null reference exception

Posted by Community Admin on 22-Oct-2013 00:00

I am attempting to write custom javascript controls for document management, but have hit a roadblock from the start.
I have a controller that returns json results to an ajax call. When attempting to access the url property to feed into my model the code throws a null reference exception. I also attempted using the fluent API to get the documents and get null reference exceptions in the same place.
Not sure what I am doing wrong?
Controller Code

public class SFDocumentController : Controller

[HttpPost]

public ActionResult GetDocumentsByLibrary(Guid documentLibraryId)

LibrariesManager docManager = LibrariesManager.GetManager();

DocumentLibrary library = docManager.GetDocumentLibraries().Where(l => l.Id == documentLibraryId).FirstOrDefault();

if (library != null)

var documentList = docManager.GetDocuments()

.Where(d => d.Parent.Id == documentLibraryId && d.Status == ContentLifecycleStatus.Live)

.Select(d => new SFDocumentView(d)).ToList();

return Json(documentList);

else

return Json("Library Not Found");

Model

public class SFDocumentView



            public SFDocumentView()

            public SFDocumentView(Document document)



                this.Id = document.Id;

                this.Title = document.Title;

                this.Description = document.Description;

                this.Url = document.Url;



                this.TotalSize = document.TotalSize;



            public Guid Id get; set;

            public string Title get; set;

            public string Description get; set;

            public string Url get; set;

            public long TotalSize get; set;



JS

var libraryId = "Some Guid";

$.ajax(

                url: application_path + 'json/SFDocument/GetDocumentsByLibrary',

                cache: false,

                type: 'POST',

                contentType: 'application/json; charset=utf-8',

                data: JSON.stringify( documentLibraryId: libraryId ),

                success: function (result)

                  console.log(result);



          );

Posted by Community Admin on 24-Oct-2013 00:00

Hi Bobby,

Thank you for contacting Sitefinity Support!

Try replacing this:

var documentList = docManager.GetDocuments().Where(d => d.Parent.Id == documentLibraryId && d.Status == ContentLifecycleStatus.Live).Select(d =>

new SFDocumentView(d)).ToList();

with this:

var documentList = docManager.GetDocuments().Where(d => d.Parent.Id == documentLibraryId && d.Status == ContentLifecycleStatus.Live).ToList().Select(d =>

new SFDocumentView(d)).ToList();

Please do not hesitate to contact us if you have any other problems or concerns.
Regards,
Ivan A. Petrov
Telerik

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