Hey guys,

I'm pretty new to using DotNetNuke and not very familiar with certain aspects of the framework and its code structure yet.
Therefore, I would like to apologize for maybe asking stupid questions upfront. ^^
But now to my problem...

I'm have worked with DNN 5.6.0 for a few days, I read and watched some tutorials (amongst others about module creation), and then I tried to create an own module in an independent installation of DNN.
Except of a few difficulties due to my lack of knowledge everything worked pretty well, but now I'm actually trying to modify the behavior of some of the core modules, in particular the Registration, the Login and the User Profile forms, in the following way:

1) I would like to find the parts of these modules, where the database actions are executed and kind of "hook" into the code there.
The reason for this is that I need to invoke an external web service when the user registers, logs in or changes his profile.
The data that has been filled in by the user into the respective forms is part of the request to the web service, and the success of the registration, login and profile update should also depend on the response of the web service.
Unfortunately, I was not really able to figure out, in which parts of which files the modules actually perform a database transaction. :(

2) Secondly, I would like to modify the forms of the mentioned modules by removing some specific fields and adding additional ones, but I'm also not quite sure, where and how to do this. What would be the most elegant way to achieve this modification?

Furthermore, I'm aware of the fact that it's not necessarily good to change the code in core modules in order to keep the whole installation "update-able". To avoid this, I would like to create own modules for my desired functionality and replace the core modules with them.

Due to my lack of experience with DNN this whole undertaking seems a little bit complex for me and I actually just don't know, where to start.
Every kind of help with this issue would be greatly appreciated.
Thanks in advance and kind regards,

Chris

The user profile module you are looking for is in ~/DesktopModules/Admin/ViewProfile
The login and registration modules in ~/DesktopModules/Admin/Authentication

These are core modules and I wouldn't recommend changing them. Also, I'm sure they use core classes and methods so to change that stuff you need to d/l the core, recompile and redeploy.

"~/" is the webroot of your ddn installation.

With regard to the first part of your question - a better way handle this functionality would be thru the creation of a custom membership provider.
This is pretty much what the concept of a custom membership provider is all about.

With regard to the second area.

Yes you would need to create your own versions of the various modules in the user area to achieve changes to the interface appearance.  However, if all you are looking to do is add or remove some fields this can be achieved thru the user profile editor - which lets you control which fields are used on the user profile page.

The thing to understand however, is that there is only limited UI modification possible in the DNN core user profile - since this module is driven by the dnn edit settings engine which renders the fields dynamically -  as such there is no LAYOUT markup to be found in the source code.

Westa