Delete Directory if Emtpy or Only contains .txt

i using syntax move .xlsx or .xls file 1 master directory.  how can delete directory if file left .txt file or directory empty?  note not want delete c:\files\ directory sub-directories.  so example if move spreadsheet directory c:\files\rodger\ , after move directory is 

1) empty

2) has .txt in it

i want delete directory.

also, new c# syntax, proper way move files 1 directory another?  if happens notice may over-looking i'd love tips on improvement gurus!

string path = @"c:\files\"; string newpath = @"c:\master\files\"; var spreadsheet = directory.enumeratefiles(path, "*.xlsx", searchoption.alldirectories); parallel.foreach(spreadsheet, ssheet => { 	string sssssheet = path.getfilename(ssheet); 	if (file.exists(newpath + "\\" + sssssheet)) { } 	else { file.move(ssheet, newpath + "\\" + sssssheet); } });

1 additional thought if file c:\files\abcd\abcd.xlsx exists in c:\master\files\abcd.xlsx -- still want delete directory c:\files\abcd\.

using system; using system.collections.generic; using system.io; using system.linq; using system.text; using system.threading.tasks;  namespace consoleapplication2 { 	class program 	{ 		static void main(string[] args) 		{ 			string path = @"c:\files\"; 			string newpath = @"c:\master\files\"; 			// usage 			cleanup(path, newpath); 		}  		public static void cleanup(string dir, string target, bool deletetarget = false) 		{ 			if (!directory.exists(dir)) 			{ 				return; 			} 			if(!directory.exists(target)) 			{ 				directory.createdirectory(target); 			} 			foreach(string d in directory.getdirectories(dir)) 			{ 				cleanup(dir, d, true); 				if(deletetarget && directory.getfiles(d).where(p=>!p.endswith(".txt")).count() == 0) 				{ 					try 					{ 						// true recursive delete, note called after copying 						directory.delete(d, true); 					} 					catch(exception ex) 					{  						// add routine case suits needs 						// exceptions can access denied, directory gone, directory opened, etc. 					} 				} 			} 			foreach(string f in directory.getfiles(dir)) 			{ 				if(f.endswith(".xslx")) 				{ 					string newpath = path.combine(target, path.getfilename(f)); 					while(file.exists(newpath)) 					{ 						// add routine case suits needs (new name file) 					} 					try 					{ 						file.move(f, newpath); 					} 					catch(exception ex) 					{ 						// add routine case suits needs 						// exceptions can access denied, file gone, file opened, etc. 						// means prpably won't able delete folder 					} 				} 			} 		} 	} }

untested!!!

however, if might work, can suggest, use sort of object collect information on

{ fileoriginal=#oldpath#, filenew=#newpath#, filewasmoved {get { return filenew == null} }, moveexception=#occuredexception# }

{ list<fileactionresult>allfilteredfilesindir=[#allfilteredfilesindir#], hasotherfiles=#nonignorablefilesfound#, _dir=#directorypath#, _filter=#filestomove#, deleted=#wasdeleted#, deleteexception=#occuredexception# }

so can start afterprocessing handle exceptions taht may have occured (for example when file opened , not moved, can present user in afterprocessing , try move again)

cheers

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