FredericDH

Creating a package (Object reference not set to an instance of an object)

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Hi! I am trying to create an eSignLive package using the C# SDK. Below is the error I get when "sending" my package. Apparently, it seems that I forgot to assign a value in my package {System.NullReferenceException: Object reference not set to an instance of an object. at Silanis.ESL.SDK.SignerConverter.ToAPIRole(String roleIdName) at Silanis.ESL.SDK.DocumentPackageConverter.ToAPIPackage() at Silanis.ESL.SDK.EslClient.CreatePackage(DocumentPackage package) here is my code : Document document = new Document { Id = $"123456", Content = Convert.FromBase64String(base64StringElement?.Value), Name = fileNameElement?.Value, }; List documentsPackage = new List(); documentsPackage.Add(document); Signer signer = new Signer("[email protected]", "firstname", "lastname", new Authentication(AuthenticationMethod.EMAIL)); List sList = new List(); sList.Add(signer); Signature s = new Signature("[email protected]", 1, 45, 572); s.Id = new SignatureId("111"); documentsPackage[0].Signatures.Add(s); PackageId packageId = eslClient.CreatePackage(package); eslClient.SendPackage(packageId); DocumentPackage documentPackage = eslClient.GetPackage(packageId);

Approved Answer

Reply to: Creating a package (Object reference not set to an instance of an object)

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You wouldn't have to build your package as you showed in your last post. That's just the makeup of the simple "all-in-one" examples that we usually show. You could add signers dynamically to a package after building the document package. For example:
DocumentPackage superDuperPackage =
PackageBuilder.NewPackageNamed(“Test Package .NET”)
.WithSettings(DocumentPackageSettingsBuilder
.NewDocumentPackageSettings()))
.Build();

Signer mysigner = SignerBuilder.NewSignerWithEmail("[email protected]")
                                .WithFirstName("FName")
                                .WithLastName("LName").Build();

superDuperPackage.addSigner(mysigner);
Then, you could do the same with documents. You could even build your signers dynamically into a collection like you were doing above and should be able to add them all at once with something like:
superDuperPackage.getSigners().addAll(Collection);
I've not tried the last one, but it should work. Let me know.

- Michael

Director, Partner and Developer Technologies, OneSpan

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Reply to: Creating a package (Object reference not set to an instance of an object)

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Try building your signer like this instead and see if it fixes that error.
Signer mysigner = SignerBuilder.NewSignerWithEmail("[email protected]")
                                .WithFirstName("FName")
                                .WithLastName("LName").Build();
You might need to go to a SignatureBuilder for your signature, too. Let me know if this solves this error.

- Michael

Director, Partner and Developer Technologies, OneSpan

Facebook - Twitter - LinkedIn


Reply to: Creating a package (Object reference not set to an instance of an object)

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Michael, Thanks for you answer. It actually works, however, I realize that this methods assumes that one wants to create a document package in only 1 line of code (see your example that I pasted below). In my case, I am building my package dynamically and I need to be able to assign x signers with y documents. Does that make sense ? That's why I was taking the approach mentioned in my original post. Regards, Frederic DocumentPackage superDuperPackage = PackageBuilder.NewPackageNamed("Test Package .NET") .WithSettings(DocumentPackageSettingsBuilder .NewDocumentPackageSettings()) .WithSigner(SignerBuilder .NewSignerWithEmail("[email protected]") .WithFirstName("Frederic") .WithLastName("Frederic")) .WithDocument(DocumentBuilder .NewDocumentNamed("sampleAgreement") .FromStream(fs, DocumentType.PDF) .WithSignature(SignatureBuilder .SignatureFor("[email protected]") .OnPage(0) .AtPosition(72, 144))) .Build();

Reply to: Creating a package (Object reference not set to an instance of an object)

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Michael, Thank your for your help. While your example sounds like it would fix my issue, it doesn't seem that I can access those functions (addsigner() and getsigners()). My Silanis SDL is v11.0, do I have an old DLL ? Frederic

Reply to: Creating a package (Object reference not set to an instance of an object)

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Oops. Sorry. I was in Java. :\. With the .NET SDK, you'd have to do the first way I said. The collection way doesn't seem to exist. My apologies. superDuperPackage.Signers.Add(mysigner);

- Michael

Director, Partner and Developer Technologies, OneSpan

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Reply to: Creating a package (Object reference not set to an instance of an object)

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Michael, No problem, Im sure youre constantly juggling between the two languages HA! :-) I'll try that and will keep you posted so that future people can beneficiate from this thread Frederic

Reply to: Creating a package (Object reference not set to an instance of an object)

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Sounds good! Thank you!

- Michael

Director, Partner and Developer Technologies, OneSpan

Facebook - Twitter - LinkedIn


Reply to: Creating a package (Object reference not set to an instance of an object)

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Michael, Thanks, it worked after some "tweaking around"! Regards, Frederic

Reply to: Creating a package (Object reference not set to an instance of an object)

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Great to hear!! Let us know whenever you have questions! :)

- Michael

Director, Partner and Developer Technologies, OneSpan

Facebook - Twitter - LinkedIn


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