AX7: Creating a method on a View using the extension method (bug?)

Question

Edit: The question is, why won't a display method on a view work?

I'm trying to use the extension method to create a display method on the DirPartyPostalAddressView and as far as I can tell, this might be an AX7 bug or I'm doing it wrong. I'm on the latest AX7 with the recent update.

I'm using the method detailed here https://blogs.msdn.microsoft.com/mfp/2015/12/15/x-in-ax7-extension-methods/

I created a proof of concept display method for use on the view DirPartyPostalAddressView vs table CustTable to show the possible bug.

Extension class code:

static class MyClass_extension
{
    public static display NoYesId displayYesDirPartyPostalAddressView (DirPartyPostalAddressView _this)
    {
        return NoYes::Yes;
    }

    public static display NoYesId displayYesCustTable (CustTable _this)
    {
        return NoYes::Yes;
    }
}

I create an extension of the form CustTable, add a checkbox control to it, set the DataSource = CustTable and DataMethod = MyClass_extension::displayYesCustTable and this works correctly. (See screenshots)

The Issue: I created an extension of the form LogisticsPostalAddressGrid, add a checkbox control to the grid, set the DataSource = DirPartyPostalAddressView and it does not compile. (See screenshot)

The error is:

The data method 'MyClass_extension::displayYesDirPartyPostalAddressView' was not found on the data source 'DirPartyPostalAddressView' or its base table/view.

What is your question? – Jan B. Kjeldsen Sep 09 '16 at 09:21 — Jan B. Kjeldsen, Sep 09 '16 at 09:21
Why won't the display method on the `view` work? – Alex Kwitny Sep 09 '16 at 16:24 — Alex Kwitny, Sep 09 '16 at 16:24

score 3 · Accepted Answer · answered Sep 23 '16 at 16:29

3

This has been confirmed as a bug and will be fixed in the next platform release.

See: https://connect.microsoft.com/site1321/feedback/details/3100997/data-methods-are-not-found-using-extension-method-on-views

answered Sep 23 '16 at 16:29

Alex Kwitny

11,211
2
49
71

score 0 · Answer 2 · answered Sep 14 '16 at 07:56

0

I think in you should be using a computed column on the view and forget about the display methods there.

Take a look at this in the AX help Wiki. I guess that for testing purposes it's enough if in the method for the computed column you just "return '1'" or "return true".

answered Sep 14 '16 at 07:56

Adrià Ariste

118
2
7

It's returning a symbol (icon/picture). I just made the example simple as a POC failure. I'll look this over and see if I can get away with a computed column though. – Alex Kwitny Sep 14 '16 at 16:01

AX7: Creating a method on a View using the extension method (bug?)

2 Answers2