Any filename instead of specified one

[Visionary]

System.IO.File.Move(@"ConsoleApplication2.exe", @"C:\CA\ConsoleApplication2.exe");

I am using this code and I was wondering if I can set the @"ConsoleApplication2.exe", where the "ConsoleApplication2.exe" part can be a variable. Which I mean instead of specifying the filename, there is a variable instead for the file's current name. I hope you guys will understand what I am asking.

Example:

%var = file's current name
Say my file's name is TODD.exe so %var = Todd.exe

System.IO.File.Move(@"%var", @"C:\CA\%var");