Hi Terry,

I don't have access to Visual Studio right now so this will be coming right as I remember it. A product instance have a collection "ProductProperties". This collection will contain all your non-multilinqual properties (referenced to a product definition field). I recall there is a method called AddProperty on the product which should help you adding data to the right collections (determined by if it's multilinqual or not).

Best regards Martin

Thanks very much Martin, that helps a lot.

However I am still having problems with using ProductProperty.SetValue . The error occurs in the following code:

               ProductProperty productProperty_PDSKU = new ProductProperty();
            productProperty_PDSKU.Product = product;
            productProperty_PDSKU.ProductDefinitionField = productDefinition.ProductDefinitionFields.SingleOrDefault((x => x.Name == "PDSKU"));
            string mySku = msproduct.Open_Volume_Products.ToString();
            object mySkuObject = new object();
            mySkuObject = (object) mySku;
            productProperty_PDSKU.SetValue(mySkuObject);
            //productProperty_PDSKU.SetValue("077-06673");
            product.AddProductProperty(productProperty_PDSKU);

Specifically the following line from above:

productProperty_PDSKU.SetValue(mySkuObject);

Throws the following error:

System.NullReferenceException was unhandled by user code HResult=-2147467261 Message=Object reference not set to an instance of an object. Source=ClancyCom8 StackTrace: at ClancyCom8.TCUCAdmin.deleteProductClick1(Object sender, EventArgs e) in c:\Clancy\AClancyCom\Dev\ClancyCom8\ClancyCom8\TCUCAdmin.aspx.cs:line 659 at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) InnerException:

I have used the debugger to check and the object "mySkuObject" which I am passing is not null.

Do you have any idea what the problem is here ?

Thanks again,

Terry

Hi Martin,

Yes all the products I am adding share the same "ProductDefinition" and related "ProductDefinitionFields". Each of those fields has been set to a data type of "short text" except the price which I have set to "number".

So I do not think that a null DataType is the problem - any other ideas ?

Terry

Martin ,

I might have found the cause, not sure, will check tomorrow.

Terry

Martin,

OK I solved it yes you were on the right track my productProperty.ProductDefinitionField was NULL because I was using SingleOrDefault to set it from a matching set of more than one.

The trick was not to look at just what I was passing the method but what else in the class the method might need which might be incorrectly null.

Tanks

Terry

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