Modify the file name and delete files

Modify the file name

 // modify the file name 
        Private  void the button1_Click ( Object SENDER, EventArgs E) 
        { 
            string = textBox1.Text oldfilename; // original file path 
            FileInfo FINFO = new new FileInfo (oldfilename); // get files FileInfo object
             // new file path 
            string = oldfilename.Substring newfilename ( 0 , oldfilename.LastIndexOf ( " \\ " )) + " \\ " + textBox2.Text.Trim () + oldfilename.Substring (oldfilename.LastIndexOf ( " . "  ));
            finfo.MoveTo (newfilename);// move the file 
        }

Delete Files

  // delete files 
        / * need to use the Delete method of FileInfo objects when deleting files, which permanently delete files. 
         * 
         * 
         * / 
        Private  void Secret010_Load ( Object SENDER, EventArgs E) 
        { 
            // method of 
            the FileInfo FINFO = new new the FileInfo ( @ " D: \ 123 \ 1.txt " ); 
            finfo.Delete (); 
            // Method Two 
            File. the Delete ( @ " D: \ 123 \ 1.txt " ); 
        }