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

        public virtual NestedProjectNode AddExistingNestedProject(ProjectElement element, __VSCREATEPROJFLAGS creationFlags)
        {
            ProjectElement elementToUse = (element == null) ? this.nestedProjectElement : element;

            if(elementToUse == null)
            {
                throw new ArgumentNullException("element");
            }

            string filename = elementToUse.GetFullPathForElement();
            // Delegate to AddNestedProjectFromTemplate. Because we pass flags that specify open project rather then clone, this will works.
            Debug.Assert((creationFlags & __VSCREATEPROJFLAGS.CPF_OPENFILE) == __VSCREATEPROJFLAGS.CPF_OPENFILE, "__VSCREATEPROJFLAGS.CPF_OPENFILE should have been specified, did you mean to call AddNestedProjectFromTemplate?");
            return AddNestedProjectFromTemplate(filename, Path.GetDirectoryName(filename), Path.GetFileName(filename), elementToUse, creationFlags);
        }