What does App_Data mean?

App_Data is a folder automatically created when creating a website under the ".NET" platform; it is located in the root directory of the Web application. The App_Data folder should contain the local data storage of the application. This folder is the default location where the ASP.NET provider stores its own data.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The App_Data folder is automatically created when creating a website under the .NET platform. It is located in the web application root directory and the App_Data folder should contain the application's local data store. It typically contains data storage in the form of files such as Microsoft Access or Microsoft SQL Server Express databases, XML files, text files, and any other files supported by the application. The folder contents are not handled by ASP.NET. This folder is the default location where the ASP.NET provider stores its own data.

It is important to note that the default ASP.NET account is granted full access to the folder. If you happen to change your ASP.NET account, be sure to make sure the new account is granted read/write access to this folder.

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