I've to customize edit and new form for a list. I started to create an empty project SP containing an application page. On featureactivated i set new url for edit and new for on the list.
I could keep standard form but i need to add javascript operation on save button and add some controls. I've to put an splongoperation too because in event receiver it's not allowed. In some tutorials they copy content form from SharePoint Designer and paste in application page.
Do you have a complete sample on how to do this?