how to create an EDT or Table Object in the AOT dynamiclly?

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Posted on by RongYan

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Hi,

I have an enquirement that create an EDT or Table object in the AOT dynamiclly.

for example, there's the runnable class source code:

find a node in the AOT;
create EDT object;
save EDT obejct;

but when I do the save, there is the error which is "the file is read only", but I can create EDT object dynamiclly in Dynamics AX.(Update: sorry, it also not works in AX)

Does anyone have the experience about it?

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Sergei Minozhenko 23,095 on at

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Hi RongYan,

Is it a business requirement or just developer experience in VS?

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André Arnaud de Cal... 304,116 Super User 2026 Season 1 on at

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Hi RongYan,

Note that the application and development environment have been separated in Dynamics 365. In the application, you can't create AOT elements. It is possible to create e.g. fields by using the configurable Custom fields feature. A production environment does not have a development environment (AOT). It is having compiled runtime dlls only.

If your question is about a new kind of developer tool, then it would be possible to create a Visual Studio plug in which could help a developer in another way.

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RongYan 214 on at

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Hi,

So sorry that I'm clear at my question.

It's not a business requirement, it's a development requirement. We just want to create a simple to tool to create many of EDT class automatically.

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Rahul Mohta 21,042 on at

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see if this helps

community.dynamics.com/.../creating-and-using-tables-through-code-x

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André Arnaud de Cal... 304,116 Super User 2026 Season 1 on at

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Hi RongYan,

Can you explain how your solution should be triggered and work different from creating an EDT using standard development tools?

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RongYan 214 on at

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Hi André Arnaud de Calavon

thanks!

As my imagine, I create a runnable class, and write the source code of creating EDT or Table in it.

Then I write the EDT or Table 's property/field information in some config files.

I run the runnable class, then the class read from above config files, then creating the EDT or Table according to the config information in the AOT.

yes, it's just a tool that objects are created by config files automaticlly.

It's not difficult to read the config file, but it seems that I can not create EDT or Table Object in the AOT.

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André Arnaud de Cal... 304,116 Super User 2026 Season 1 on at

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Hi RongYan,

A runnable class is not possible anymore like AX2012. This is because the runtime is not able to create development objects anymore.

I haven't done it myself, but here is a small introduction to add-ins: docs.microsoft.com/.../developer-tools-add-ins

You can also search GitHub for some developer tool extensions. I'm aware of this one from Hichem, but I haven't used it myself: github.com/.../D365FONinjaDevTools

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nmaenpaa 101,166 Moderator on at

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You can't use x++ code to create AOT objects.

Instead you need to develop a Visual Studio plugin. You can check existing plugins as examples, one of them is shared by Andre in his message.

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