You'll need to incorporate the authorization module to your application.
If your application is based on the legacy navigation template, you can drag the module from the Modules category of the palette into your application. If your application is a single view application, you'll need to base it on the Authorization application template (one of the choices in the New Project wizard).
In a nutshell, you will then need to do the following:
I recommend you review the authorization how-to, available here, for precise details.
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