Crashes when adding product

Per Ljung

Posted on 25/10/2011 18:01:15

Hi!

I'm trying to add a product:

product = Product.Create("");

            product.addGroup(new Group("hej"));

            product.ID = "A333";
            product.Number = "A333";
            product.Name = "test";

            product.DefaultShopID = Shop.getShops(true).get_Item(0).ID;

            product.LanguageID = Dynamicweb.eCommerce.Common.Context.LanguageID;

            product.Save();

But always get this error:

[NullReferenceException: Object reference not set to an instance of an object.]
   Dynamicweb.eCommerce.Common.Context.set_LanguageID(String Value) +60
   Dynamicweb.eCommerce.Common.Context.get_Language() +71
   Dynamicweb.eCommerce.Common.Context.get_LanguageID() +78
   Dynamicweb.eCommerce.Products.Product..ctor(String ProductID, String VariantId, String languageId) +493
   Dynamicweb.eCommerce.Products.Product.Create(String ProductID, String VariantId, String languageId) +238
   Dynamicweb.eCommerce.Products.Product.Create(String ProductID, String VariantId) +11
   Dynamicweb.eCommerce.Products.Product.Create(String ProductID) +11
   DwModule.Commands.ImportProducts() +146
   DwModule.Commands.ProcessRequest(HttpContext context) +141
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Looks like there's some problem with the language settings...

Best regards,
Per

Replies

Morten Snedker

Posted on 28/10/2011 12:55:04

Hi Per,

You should think of context as being the frontend (session scope). So, if you execute the code and there is no frontend, the langauge of the context has not been set (Object reference not set to an instance of an object).

If you believe that a context language should be present at runtime of you code, please post the entire code for review.

Please let me know if you get it to work.

Regards /Snedker

Per Ljung

Posted on 31/10/2011 10:42:02

Hi, I solved it (almost).

It worked when I placed the code in an aspx-file and referred to it in the setting "Script" in the module preferences.

But I wonder how to solve this when I have an aspx handler that triggers product import/order export etc. How do I do to connect this to Dynamicweb? I first thought that the only thing you had to do was to place the code on the dw server, but as I said, it didn't work that way.

Best regards,

Per

Imar Spaanjaars

Posted on 31/10/2011 11:11:09

This post has been marked as an answer

Hi Per,

The API relies on Session state, so your handler needs to support that as well. You need to derrive your handler from IRequiresSessionState like this:

public class YourHandler : IHttpHandler, System.Web.SessionState.IRequiresSessionState

Hope this helps,

Imar

Votes for this answer: 0

Per Ljung

Posted on 31/10/2011 12:02:23

That solved it, thanks!

/Per

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Crashes when adding product

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