title: Will jmeter function FileToString(path) takes dynamic values
body: <p>Will jmeter function FileToString(path) takes dynamic values.</p>
  
  <p>I need to use around 400 json files as a input. so planning to use FileToString($fileName}) in body data. By providing the filename column in csv. But it seems Jmeter is checking filename as file instead of getting value from csv.</p>