Rename existing file name

Question

I have the following code which copies a file to a specific folder and then renames it. When a file with that name already exists I get the following exception:

Cannot create a file when that file already exists

Is there a way to overwrite the file and rename it? or I should delete the old one and then change the name?

Here is my code:

 File.Copy(FileLocation, NewFileLocation, true);
 //Rename:
 File.Move(Path.Combine(NewFileLocation, fileName), Path.Combine(NewFileLocation, "File.txt"));               

Answer 1

You're correct, File.Move will throw an IOException if/when the filename already exists. So, to overcome that you can perform a quick check before the move. e.g.

if (File.Exists(destinationFilename))
{
    File.Delete(destinationFilename);
}
File.Move(sourceFilename, destinationFilename);

Answer 2

Try to use only:

if (File.Exists("newfilename"))
{
    System.IO.File.Delete("newfilename");
}

System.IO.File.Move("oldfilename", "newfilename");

Answer 3

You should use File.Exists rather than letting the Exception throw. You can then handle if the file should be overwrote or renamed.