AjaxControlToolkit.ScriptControlBase.FindControl C# (CSharp) Метод

        public override Control FindControl(string id)
        {
            var control = base.FindControl(id);
            if(control != null)
                return control;

            for(var container = NamingContainer; container != null; container = container.NamingContainer) {
                control = container.FindControl(id);
                if(control != null)
                    return control;
            }
            // NOTE: [rb] I'm not implementing ResolveControlID just yet. I prefer to use a colon (:) separated ID name to get to controls inside of a naming container
            // e.g. TargetControlID="LoginView1:LoginButton" works just as well
            return null;
        }