How to Read Key & Values From AppSettings and Assign in List

public class URLs

    {

        public string Name { get; set; }

        public string Url { get; set; }

    }

    void BindGrid()

        {

            List<URLs> ObjUrls = new List<URLs>();

            foreach (string key in ConfigurationSettings.AppSettings)

            {

                string value = ConfigurationManager.AppSettings[key];

                ObjUrls.Add(new URLs() { Name = key, Url = value });

            }

            if (ObjUrls.Count > 0)

            {

                GrdAppUrls.DataSource = ObjUrls;

                GrdAppUrls.DataBind();

            }

        }