Multiple values for a single config key

Question

I\'m trying to use ConfigurationManager.AppSettings.GetValues() to retrieve multiple configuration values for a single key, but I\'m always receiving an array o

Answer 1

Here is full solution: code in aspx.cs

namespace HelloWorld
{
    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            UrlRetrieverSection UrlAddresses = (UrlRetrieverSection)ConfigurationManager.GetSection("urlAddresses");
        }
    }

    public class UrlRetrieverSection : ConfigurationSection
    {
        [ConfigurationProperty("", IsDefaultCollection = true,IsRequired =true)]
        public UrlCollection UrlAddresses
        {
            get
            {
                return (UrlCollection)this[""];
            }
            set
            {
                this[""] = value;
            }
        }
    }


    public class UrlCollection : ConfigurationElementCollection
    {
        protected override ConfigurationElement CreateNewElement()
        {
            return new UrlElement();
        }
        protected override object GetElementKey(ConfigurationElement element)
        {
            return ((UrlElement)element).Name;
        }
    }

    public class UrlElement : ConfigurationElement
    {
        [ConfigurationProperty("name", IsRequired = true, IsKey = true)]
        public string Name
        {
            get
            {
                return (string)this["name"];
            }
            set
            {
                this["name"] = value;
            }
        }

        [ConfigurationProperty("url", IsRequired = true)]
        public string Url
        {
            get
            {
                return (string)this["url"];
            }
            set
            {
                this["url"] = value;
            }
        }

    }
}

And in web config