How To Read Key/Value Pairs From AppSettings?

Application parameters in web.config file can be very useful. This is an example of appSettings section in web.config that contains two parameters:

[ XML ]

<configuration>
    <appSettings>
        <add key="FirstParameter" value="5" />
        <add key="SecondParameter" value="50"/>
    </appSettings>

To read application parameters from appSettings section in web.config file, you can use this code:

[ C# ]

string FirstParameter = System.Configuration.ConfigurationManager.AppSettings["FirstParameter"];

[ VB.NET ]

Dim FirstParameter As String = _
System.Configuration.ConfigurationManager.AppSettings("FirstParameter")

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