Multiple extensions to same object

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Posted on by Dansne

We have an situation where we have multiple developers working on the same project and will have some customization, probably in the future we will have some extensions to the same objects. So the question is how to work with extensions to already existing extension?

Is the best way to always create a new extension for each new functionality or is it best practice to one create an extension the first time and then use the same? Our concern is that we have too many extensions to the same object in the future.

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Development / Customization / SDK

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Sukrut Parab 71,741 Moderator on at

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Creating multiple extension in your own model for same object is not going to cause any harm and there is no best practice associated with it . You have to just make sure when new extension is created you name it properly e.g CustTable.MyExtension instead if keeping default name like custTable.extension1. This would help to avoid conflicts if Microsoft creates extension for same object. If you want to Keep number of extensions minimum to keep it simple then your devs can search for already existing extension and add functionality to the same one.
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nmaenpaa 101,172 Moderator on at

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The best way really depends on your scenario. Simple is beautiful, so I would ask is there a benefit to split the extensions of one standard object to multiple classes or table/form extensions (in one model / package)? If there is value for you, you can consider it.

Since the execution order of event handlers / CoC is random, you should place dependent extensions in same method.

Searching and examining existing code is easier if you don't have 20 extension classes for one standard object.

Also you can't extend extensions.
Dansne 15 on at

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Thank you both for great input. This cleared my concerns and will most probably go for one extensions only for most cases.
yasserSaber 40 on at

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Hello ,

Can i do two extensions for standard form and let two different menu items each one to refer one of the extensions ? Because i need to use the same form but with update some logic that it prepared for specific group of users and another update some logic for another group of users so i cannot let the two user groups working in same logic but both based on the same form needed
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ergun sahin 8,826 Moderator on at

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Yes you can, but if you have two button then you can create a extension with two method too
yasserSaber 40 on at

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Thank you for your answer , how i can assign form with specific extension only to the menu item instead of the form with all extensions of it
André Arnaud de Cal... 307,801 Super User 2026 Season 2 on at

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Hi Yasser,

Using x++ logic, you can determine which menu item was used to open the form. Then you can use this information to show or hide form controls. This would require x++ coding.
yasserSaber 40 on at

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Thank you Arnaud ,

The problem that the changes are big so its not simple to handle in if and else .If any solution even x++ to enable the whole extension for specific menu item and another whole extension for another menu item