So I\'m parsing a connection string for an Azure Storage Account and when I get to the page of the app that uses the connection string, the compiler catches an exception sta
Add a reference to System.Configuration.dll and add using System.Configuration;
in the file.
Then change your first line to this:
CloudStorageAccount storageaccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["StorageConnectionString"]);
You need to get the value, not just pass the key to Parse.