Microsoft.VisualStudio.Project.ProjectContainerNode.AddVirtualProjects C# (CSharp) Method

        protected virtual void AddVirtualProjects()
        {
            for(HierarchyNode child = this.FirstChild; child != null; child = child.NextSibling)
            {
                NestedProjectNode nestedProjectNode = child as NestedProjectNode;
                if(nestedProjectNode != null)
                {
                    nestedProjectNode.AddVirtualProject();
                }
            }
        }