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Use AppSettingsReader!

January 22, 2016
This is something that is useful and is a very general tip,m you can use the AppSettingsReader from System.Configuration to read a key value set in the web.config.

 System.Configuration.AppSettingsReader settingsReader =
 new AppSettingsReader();

 //Get your key from config file!

 string key = (string)settingsReader.GetValue("AValue",
 typeof(String));

//This is saved here in the web.config

 <appSettings>
 <add key="AValue" value="hereismyvalue" />
 </appSettings>

This is very useful for using the same string on many Controller classes for example!
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