Microsoft.VisualStudio.Project.NodeProperties.Extender C# (CSharp) Method

        public object Extender(string extenderName)
        {
            EnvDTE.ObjectExtenders extenderService = (EnvDTE.ObjectExtenders)this.Node.GetService(typeof(EnvDTE.ObjectExtenders));
            Debug.Assert(extenderService != null, "Could not get the ObjectExtenders object from the services exposed by this property object");
            if(extenderService == null)
            {
                throw new InvalidOperationException();
            }
            return extenderService.GetExtender(this.ExtenderCATID, extenderName, this);
        }