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What do you mean by Automatic? Exactly what you said &nbsp;- ASP.NET Login control uses default aspnetdb.mdf! &nbsp; Unless you want to create your own authentication logic, you can handle the Login control's Authenticate event and add custom authentication code.
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What do you mean by Automatic? Exactly what you said  - ASP.NET Login control uses default aspnetdb.mdf!   Unless you want to create your own authentication logic, you can handle the Login control's Authenticate event and add custom authentication code.

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If I do not authenticate the website on your own( using your own &nbsp;Login1_Authenticate method) , aspnetdb comes into play automatically, correct?<br />
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See my link on explanation::<br />
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<a href="http://www.c-sharpcorner.com/uploadfile/raj1979/login-control-in-Asp-Net-3-5/" rel="ugc">http://www.c-sharpcorner.com/uploadfile/raj1979/login-control-in-Asp-Net-3-5/</a>
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If I do not authenticate the website on your own( using your own  Login1_Authenticate method) , aspnetdb comes into play automatically, correct?

See my link on explanation::

http://www.c-sharpcorner.com/uploadfile/raj1979/login-control-in-Asp-Net-3-5/

ASP.NET Website--- aspnetdb.mdf usage

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.

Microsoft Development

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.