ConfigurationSettings.AppSettings is obsolete, it has been replaced by ConfigurationManager.AppSettings

I am using this in ASp.net MVC Test project:

ConfigurationSettings.AppSettings["myconn"] and I get green line under this method saying this method is obsolete and I should use ConfigurationManager.appsettings but conf开发者_C百科igurationManager is not available in intellisence I have included

using system.Configuration at the top of Unit Test class.

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You need to add a reference to System.Configuration in your project first. Then it will be available in Intellisense.

Edit:
There are some basic and legacy methods/classes in the System.Configuration namespace included in System.dll that is referenced in every project (someone correct me if I'm naming the wrong .dll, but I'm pretty sure that's where they are). When they got rid of the ConfigurationSettings class for the ConfigurationManager classes, they abstracted the namespace out into its own .dll, but they didn't yank the namespace entirely.

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Also note that connection strings should exist in another key in the config:

• http://msdn.microsoft.com/en-us/library/ms178411.aspx
• http://weblogs.asp.net/owscott/archive/2005/08/26/Using-connection-strings-from-web.config-in-ASP.NET-v2.0.aspx