title: How to copy data in a text file to the clipboard?
body: <p>I want to copy a data in a text file to the clipboard. This is the same sort of file you could open in Notepad, for example.</p>
  <p>I read this <a href="https://stackoverflow.com/questions/3546016/how-to-copy-data-to-clipboard-in-c-sharp">other question</a>, it is about copying a particular given string or from textbox in a form.</p>
  <p>But I want to copy from a file.</p>