Web Forms :: Move Files From One Folder To Another?

I need to process files xml files which are present in Transfiles folder and then need to move that files to processed folder.Here is my code.I am getting issue as 

Could not find file :'file path'

string Tranfiles, ProcessedFiles;
//Tranfiles = Server.MapPath(@"~goduriansth100 ransfiles" + Filename);
Tranfiles = Server.MapPath(@"~ ransfiles" + Filename);
if (File.Exists(Server.MapPath(@"~ ransfiles" + Filename)))
{
File.Delete(Server.MapPath(@"~ ransfiles" + Filename));
}
//ProcessedFiles = Server.MapPath(@"~goduriansth100ProcessedFiles");
ProcessedFiles = Server.MapPath(@"~ProcessedFiles");
File.Move(Tranfiles, ProcessedFiles);