Web.config appsettings

How can I use the k开发者_如何学Cey value that is inside my web.config directly from the asp.net webpage i.e using the <%$ %>

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See ASP.Net Expressions Overview

Example from that page

Web.config...

<appSettings>
  <add key="copyright" value="(c)Copyright 2004 Northwind Traders"/>
</appSettings>

Then you can use...

<%$ AppSettings: copyright %>

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<%= ConfigurationManager.AppSettings["key_name"] %>

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I think

<%$Appsettings:KeyName %>

Should do what you need.

This uses the AppSettingsExpressionBuilder described here https://web.archive.org/web/20110107080439/http://www.4guysfromrolla.com/demos/printPage.aspx?path=/articles/022509-1.aspx

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<%= ConfigurationManager.AppSettings["mySetting"] %>