Microsoft.VisualStudio.Project.ProjectNode.GetBaseDirectoryForAddingFiles C# (CSharp) Method

        internal string GetBaseDirectoryForAddingFiles(HierarchyNode nodeToAddFile)
        {
            string baseDir = String.Empty;

            if (nodeToAddFile is FolderNode)
            {
                baseDir = nodeToAddFile.Url;
            }
            else if (nodeToAddFile is ProjectNode)
            {
                baseDir = this.ProjectFolder;
            }
            else if (nodeToAddFile != null)
            {
                baseDir = GetBaseDirectoryForAddingFiles(nodeToAddFile.Parent);
            }

            return baseDir;
        }