file copying

[dipalichavan82]

i want to copy a file name C:\\log.text to C:\\ in format of:
C:\\ username-logfile-datetime.txt
yymm & usrname are my global variable

i did:


FileInfo logfile = new FileInfo("C:\\l og.txt");
string LFile = "C:\\"+GlobVar. UsrName+"-LogFile-"+GlobVar.YYMM+ DateTime.Now.To ShortTimeString ()+".txt";

logfile.CopyTo( LFile, true);

i am getting error:
"The given path's format is not supported."
i think problem is due to "DateTime.Now.T oShortTimeStrin g()"
please help me : what sort of error this is.please help

[dipalichavan82]

hey , i got the answer.
when i m asking for current time, it is in this format(3:34)
and we cant use reserved char like :,? for file name.
sloution is take current time in string and replace : by - or any other allowed char