split firstname and xtension of a file

[sweetneel]

i have a file named abc.pcl

i want to convert it abc.dat

in c#.net how to do it. i am fetching this file from a directory, and i have to save it as abc.dat.

file name should be same, but extension is changed.

thanx.
neel.

[Curtis Rutland]

System.IO.FileInfo can do everything you need.

The properties you will need are FullName, Name, and Extension. The method you can use is CopyTo(newPathString).

If you need information on those members, there is a link at the bottom of the MSDN page I linked you to.

[sweetneel]

i have done this,

string sFile;
string fDoctype;
string opt;
sFile = "D:\\processedpcl\\ARG.OUT.WIRE.INFO0.doc";
string pfile = "D:\\processedfile" + "\\" + sFile;
fDoctype = pfile.Substring(pfile.LastIndexOf("\\") + 1);
Console.WriteLine(fDoctype);
opt = fDoctype.Substring(0, 3);
Console.WriteLine(opt);

[r035198x]

i have done this,

string sFile;
string fDoctype;
string opt;
sFile = "D:\\processedpcl\\ARG.OUT.WIRE.INFO0.doc";
string pfile = "D:\\processedfile" + "\\" + sFile;
fDoctype = pfile.Substring(pfile.LastIndexOf("\\") + 1);
Console.WriteLine(fDoctype);
opt = fDoctype.Substring(0, 3);
Console.WriteLine(opt);

There is really no need for all that reed dancing with that substring. Read insert's post above again.