NullReferenceException error

Question

2.     I created a validator for Sourcing Approvals (type 5012) where I want to get EntityViewerSections for the SourcedSpecification of the Sourcing Approval in context. I get a NullReferenceException error (i.e. Object reference not set to an instance of an object) for the code below. Any ideas what is causing the NullReferenceException?
protected override bool Validate_Internal(IValidationContext ctx, object propVal)
try
var sourcingApproval = ctx.ValidationTarget.As<ISourcingApproval>();
var sourcedSpec = sourcingApproval.SourcedSpecification;
if (sourcedSpec is IIngredientSpecification)
IEntityViewerConfig vc = null;
vc = new IngredientParentViewerConfig();
var specSections = vc.GetEntityViewerSections(sourcedSpec, null);
catch (Exception ex)
var errorId = EventLogWriter.AddEntry("{0}".F(ex.ToString()), EventLogEntryType.Error);
AddValidationError(m_bReport, ctx, "An error has occured in ScrmRestrictedIngredientsValidator. Error Id #{0} has been assigned as the Id error. Please use this error Id #{0} when refering to this error.".F(errorId), GetType());
return ctx.ErrorCount == 0;
Edited by: user12207415 on Oct 26, 2012 9:35 AM

Answer 1

so i found the missing line i needed for the configsections node and put it in the srcm web.config. i'm now able to call the GetEntityViewerSections without error but now i'm getting another NullReferenceException (stack trace is at the bottom). here's the line of code it's happening on. any ideas as to why?
var specSections = vc.GetEntityViewerSections(sourcedSpec, null);
var formulationSpecs = (new ArrayList(specSections)
.Cast<IEntityViewerSection>()
.SelectMany(entityViewerSection => entityViewerSection.Items.Cast<IEntityViewerItem>(),
(entityViewerSection, item) => PdmGateway.GetBaseSpecByPkid(item.PKID))
.Where(x => x is IFormulationSpecification)
.Where(SpecWorkflowTagEvaluator.IsSpecApproved))
.ToArray();
Here's what GetBaseSpecByPkid does:
public IBaseSpec GetBaseSpecByPkid(string pkid)
return pkid == "" ? null : GetIXDataObject<IBaseSpec>(pkid);
Here's the stack trace:
at Xeno.Prodika.Services.ServiceManager.Xeno.Prodika.Services.IServiceManager.get_Item(String key)
at Oracle.Agile.PlmProcess.PLM4PExtensionUtils.Common.ServiceHelper.get_ClassScopedSpecService()
at Oracle.Agile.PlmProcess.PLM4PExtensionUtils.Workflow.SpecWorkflowTagEvaluator.IsSpecApproved(IBaseSpec baseSpec)
at System.Linq.Enumerable.<>c__DisplayClassf`1.<CombinePredicates>b__e(TSource x)
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
at Tyson.Pdm.Validator.Lib.ScrmValidators.ScrmRestrictedIngredientsValidator.Validate_Internal(IValidationContext ctx, Object propVal) in c:\PDMProjects\Prodika.Extensions\Dev\Trunk\Tyson.Pdm.Validator.Lib\ScrmValidators\ScrmRestrictedIngredientsValidator.cs:line 63