I'd like to have a pop up that contains an aspx page. It appears that adding an aspx page to a web part is not possible. When I went to add a new item to the project the closest I could find were ascx or htm.
In an effort to get something I tried adding the htm page, first to the project and then to the Layouts Mapped folder. Everytime I opened the popup it gave me a 404 error.
and here is what I had when it was in the project base:
Does it look like I have done anything wrong here? Is it possible to add an aspx to a web part? If not, is there an alternative?