Azure CloudStorageAccount.SetConfigurationSettingPublisher

http://www.codeproject.com/KB/azure/azure-configuration.aspx

public static Action<string, Func<string,bool>> GetConfigurationSettingPublisher()
{
    if (RoleEnvironment.IsAvailable)
      return (configName, configSetter) =>
    configSetter(RoleEnvironment.GetConfigurationSettingValue(configName));
    return (configName, configSetter) =>
    configSetter(ConfigurationManager.AppSettings[configName]);
}

Imports Microsoft.WindowsAzure
Class StorageAccountFactory
    Public Shared Function SetConfigurationSettingPublisher() As Action(Of String, Func(Of String, Boolean))
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    End Function

End Class