Copy file from one directory to another

Question

I am pretty new to C# and I am trying to get my program to copy a file from one location to another. The method I have is as below;

    private void CopyInstallF         


        

Answer 1

File.Copy requires the full filename for the destination.

destFileName
Type: System.String
The name of the destination file. This cannot be a directory.

If your input is just the folder name then you need to add the filename of the source file.

private void CopyInstallFiles(object sender, EventArgs e)
{
    // The correct syntax for a path name requires the verbatim @ char
    string sourceFile = @"F:\inetpub\ftproot\test.txt";
    string file = Path.GetFileName(sourceFile);
    string copyPathone = directoryImput.Text;
    System.IO.File.Copy(sourceFile, Path.Combine(copyPathone, file), true);
}

Note the final parameter = true to overwrite a file in the destination folder.

As a side note, I suggest you to remove the textbox as input for a folder name but instead use the FolderBrowserDialog