List all Files Matching Search Pattern in Directory and Subdirectories

This blog defines how to list all files matching search pattern in directory and subdirectories.

This blog defines how to list all files matching search pattern in directory and subdirectories.

 /// <summary>

        /// Lists all matching search pattern filenames and filesize in directory
        /// </summary>
        /// <param name="rootDirPath">root directory path like C:\test\</param>
        /// <param name="searchPattern">file search pattern like *.js for searching all javascript files</param>

        private static void ListAllFilesInDirectoryAndSubdirectories(string rootDirPath, string searchPattern)

        {
           var dir = new DirectoryInfo(rootDirPath);
            if (!dir.Exists)
            {
                Console.WriteLine("Directory doesn't exists: " + dir.ToString());
                return;
            } 

            DirectoryInfo sourceDir = new DirectoryInfo(rootDirPath);

            FileInfo[] files = sourceDir.GetFiles(searchPattern);  //Get only files which you need to work with.
            foreach (var myFile in files)
            {
                try
                {
                    Console.WriteLine("Filename:" + myFile.FullName);
                    Console.WriteLine("Filesize:" + myFile.Length);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
            }
            DirectoryInfo[] subDirectories = sourceDir.GetDirectories();    //Get subdirectories
            foreach (var subDirectory in subDirectories)
            {
                ListAllFilesInDirectoryAndSubdirectories(subDirectory.FullName, searchPattern);
            }
        }