The Web. config file is an XML text file used to store ASP. NET web applications.ProgramConfiguration information (for example, the most common setting of ASP. NET web application authentication method), it can appear in every directory of the application. After you create a web application using VB. NET, a default web application is automatically created in the root directory by default.
The Web. config file, including the default configuration settings, inherits the configuration settings of all subdirectories. If you want to modify the configuration settings of a subdirectory, you can create a web. config file under the subdirectory. It can provide configuration information other than the configuration information inherited from the parent directory, or rewrite or modify the settings defined in the parent directory.
Modifications to the Web. config file at runtime can take effect without restarting the Service (note:
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