I am trying to add code to turn off the display of a module for individual users in a particular role based on a list of modules that user has been granted access to. I am trying to achieve this by:  

Creating a table that contains the UserRoleid and the moduleid’s of the modules the user is given access. I added code to DotNetNuke.Security.PortalSecurity.HasNecessaryPermission function that runs when the ‘blnAthorized’ Boolean variable is set to true.  The new code for each role the user is assigned the modules the user is granted access is compared to the module passed to this function.  The only way this code will return true is if the module is in the list of modules otherwise the code returns false.   The module’s view access has only been granted to the role the user has been assigned and the user is only assigned to Registered Users, Subscribers and the role for the UserRoleID in the table described above.

We want this to work just like DNN does based on Roles for which a user is assigned.  I have been able to write code that returns false from the DotNetNuke.Security. PortalSecurity.HasNecessaryPermission function, with the functionality I have described. Even though this function returns false the module content is still being displayed. L

This functionality is need for a project that is going to use custom modules to imbed functionality from another web application. The module will contain aspx code that will access the other application as if it were part of the portal using an ascx.  These custom modules must function like the other application and a user will be granted access to these modules as I have described.  We need to remove the custom module functionality of DNN to make it work.

Why am I still getting a display in the custom module when I am getting a false returned from the HasNecessaryPermission function? Does it default to RegisteredUsers or Subscribers or something else that is preventing this from working? Are there any suggestions you might have or any ramifications to removing the DNN code that was created as a custom module?