AspNetEdit.Editor.ComponentModel.DesignerHost.GetService C# (CSharp) Метод

        public object GetService(Type serviceType)
        {
            object service = parentServices.GetService (serviceType);
            if (service != null)
                return service;
            else
                return null;
        }

        /// <summary>
        /// Gets the designer surface init parameters
        /// For now they're used for preserving selected items between reloads
        /// </summary>
        void GetDesignerInitParams(StringBuilder strBuilder)
        {
            List <string> clientIds = new List <string> (host.Container.Components.Count);

            foreach (IComponent comp in host.Container.Components)
            {
                clientIds.Add((comp as Control).ClientID);
            }

            var selServ = host.GetService(typeof(ISelectionService)) as ISelectionService;

            if (selServ == null)
            {
                throw new Exception("Could not load selection service");
            }
            ICollection   col         = selServ.GetSelectedComponents();
            List <string> selectedIds = new List <string> (col.Count);

            foreach (IComponent comp in col)
            {
                selectedIds.Add((comp as Control).ClientID);
            }

            System.Web.Script.Serialization.JavaScriptSerializer jsonizer = new System.Web.Script.Serialization.JavaScriptSerializer();
            strBuilder.AppendFormat("<div id=\"{0}\" style=\"display:none;\"> ", DesignerNames.ElementInitContClass);
            strBuilder.AppendFormat("<span id=\"{0}\">", DesignerNames.ElementSelectableContClass);
            jsonizer.Serialize(clientIds.ToArray(), strBuilder);
            strBuilder.Append("</span>");
            strBuilder.AppendFormat("<span id=\"{0}\">", DesignerNames.ElementSeletectedContClass);
            jsonizer.Serialize(selectedIds.ToArray(), strBuilder);
            strBuilder.Append("</span>");
            strBuilder.Append("</div>");
        }