System.ApplicationException

Question

I am trying to rum my application and I am getting the following error as : System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown.

The exception is thrown near the ** line of code:

public void LoadFromEntity(bool editable, string TabKey)
    {
        //Getting the FormMaster collection
        **FormTemplate formTemplate = PolicyClassCollection.CachedPolicyClasses.FindBy((int)EnumPolicyClasses.PNI).FormTemplateCo**llection.Find(ft => ft.PolicyClassId == Utility.GetCurrentPolicyClassId() && ft.DocumentType.DocumentTypeId == (int)EnumDocumentTypes.Coverage_Summary && ft.PolicyTypeId == Utility.GetCurrentAccount().CurrentRisk.PolicyTypeId);

        if (formTemplate != null)
        {
            //Set context string with current option number
            this._Account.CurrentRisk.FormContextData = this.OptionNum.ToString();

            //getting FormMasterID
            Guid vsDatabaseId = formTemplate.FormFilingHistoryId;
            string accountXmlString = this._Account.ToXML();

            //Setting the parameters in PDFServiceParms class that are to be used in "PDFService.aspx" page.
            PDFServiceParms pdfParams = new PDFServiceParms(FORM_MODE_EDIT, vsDatabaseId.ToString(), Model.AppConstants.FORM_TYPE_SELECTED_FORM, accountXmlString);

            //Saving the parameters in the session. PDFService.aspx page reads the parameters from the session. Session key is passed in the 
            //query string when calling the PDFService.aspx page.
            Session[AppConstants.SK_SUMMARY_PDF_PARAMS] = pdfParams;

            //Setting the iFrame's source to PDFService.aspx page. The PDF document generated in this page is displayed in the iFrame.
            this.iframePdf.Attributes["src"] = ResolveClientUrl(AppConstants.PAGE_NAME_PDFSERVICE) + "?datakey=" + AppConstants.SK_SUMMARY_PDF_PARAMS;
        }
        else
            throw new ApplicationException("FormMaster not found for PolicyClass = " + Utility.GetCurrentPolicyClassId().ToString() + " and DocumentType = " + ((int)EnumDocumentTypes.Coverage_Summary).ToString());
    }

Exception thrown:

System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.ApplicationException: FormMaster not found for PolicyClass = 2 and DocumentType = 27
   at PNI_SqbpeCovInfoPNISummary.LoadFromEntity(Boolean editable, String TabKey) in C:\TFS\Navigate Development\NavigateWebApp\PNI\SqbpeCovInfoPNISummary.aspx.cs:line 95
   at SQBPECoverageInformationMasterPNI.LoadFromEntity() in C:\TFS\Navigate Development\NavigateWebApp\PNI\SQBPECoverageInformationMasterPNI.master.cs:line 188
   at SQBPE.Page_Load(Object sender, EventArgs e) in C:\TFS\Navigate Development\NavigateWebApp\SQBPE.master.cs:line 55
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   --- End of inner exception stack trace ---
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.pni_sqbpecovinfopnisummary_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\navigatewebapp\253cae21\57ec5e1d\App_Web_sqbpecovinfopnisummary.aspx.41d7eb59.1z9y4p0a.0.cs:line 0
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

can some one please let me know what need to be done for this.

Answer 1

Sorry, edit of whole answer, previous was only halfway correct

The parent exception is a HttpUnhandledException. The internal exception seems quite clear and says:

FormMaster not found for PolicyClass = 2 and DocumentType = 27

That error is in your own code. The ApplicationException is not happening on the line you are referring to. The result of that line is that formTemplateis null and your code throws this exception.

This is the line throwing the exception:

throw new ApplicationException("FormMaster not found for PolicyClass = " 
    + Utility.GetCurrentPolicyClassId().ToString() 
    + " and DocumentType = " 
    + ((int)EnumDocumentTypes.Coverage_Summary).ToString());

(a friendly tip, use string.Format instead)

And this is the line returning null:

FormTemplate formTemplate = PolicyClassCollection.CachedPolicyClasses
    .FindBy((int)EnumPolicyClasses.PNI).FormTemplateCollection
    .Find(ft => ft.PolicyClassId == Utility.GetCurrentPolicyClassId() 
    && ft.DocumentType.DocumentTypeId == (int)EnumDocumentTypes.Coverage_Summary
    && ft.PolicyTypeId == Utility.GetCurrentAccount().CurrentRisk.PolicyTypeId);

(a friendly tip: write it out over multiple lines. That helps with setting breakpoints and with readability)

---

Your next question should be: why is it returning null? The answer, I don't know. In my previous attempt of answering I said something about third party code. And that's exactly what this is, as the class PolicyClassCollection is not a well-known class, there's no documentation on the internet on it. So either it is your own, in which case you can try stepping through (set a breakpoint) or it is someone else's in which case you can try calling the vendor or try stepping through after removing the "just my code" setting.