Not Getting Data For Data Source

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Posted on by NoDozing2

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I guess I'm having a moment. I have extended a table and added a field. I have extended a form, that uses the table as a datasource. When I do the following, in the form events, it gives me a null reference.

FormDataSource ds = sender.formRun().dataSource(formDataSourceStr(ProdParmRelease, ProdParmRelease));
ProdParmRelease prodParmRelease = ds.cursor();

Info(enum(prodParmRelease.PrintRouteCardV2));

I can see the new field when I do a table browse of the extended table. What the heck am I missing?

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nmaenpaa 101,160 Moderator on at

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Moved to D365 Finance forum.

First of all, you need to understand what exactly is giving you the null reference error. You shared three lines of code that do even more than three things. Which line does throw the error? And can you share your full event handler code?

By the way, when sharing your code, please click "Use rich text formatting" -> Insert -> Code, so that it's easier to read.

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nmaenpaa 101,160 Moderator on at

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Also, is this PrintRouteCardV2 your new field? If yes, please remember that you need to use your own prefix when adding fields. Otherwise you will get issues if MS adds a field called PrintRouteCardV2.

docs.microsoft.com/.../naming-guidelines-extensions

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NoDozing2 100 on at

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Thanks for the advice. Here's the event code snippet:

    [FormDataSourceEventHandler(formDataSourceStr(ProdParmRelease, ProdParmRelease), FormDataSourceEventType::Activated)]
    public static void ProdParmRelease_OnActivated(FormDataSource sender, FormDataSourceEventArgs e)
    {

        FormDataSource ds = sender.formRun().dataSource(formDataSourceStr(ProdParmRelease, ProdParmRelease));
        ProdParmRelease prodParmRelease = ds.cursor();
        FormRun         currentForm    = sender.formRun();
        SRSPrintDestinationSettings printJobSettings;

   Info(enum(prodParmRelease.PrintRouteCardV2));

        currentForm.design().controlName(formControlStr(ProdSetupRelease, SetupButtonPrintRouteCardV2)).enabled(prodParmRelease.PrintRouteCardV2);
        printJobSettings = new SRSPrintDestinationSettings(prodParmRelease.SetupPrintRouteCardV2);
        prodParmRelease.SetupPrintRouteCardV2 = printJobSettings.pack();

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nmaenpaa 101,160 Moderator on at

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First of all, your "sender" variable is already the correct form data source. So you don't need to do any tricks to get a handle to that data source.

Second, what are you trying to do with the line that is marked with yellow? For me it doesn't even compile so I wonder how you are able to even run your code. If you want to print the enum value, try

info(strFmt("%1", prodParmRelease.PrintRouteCardV2));

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