title: Saving Uploaded File with Unique Name in Folder
body: <p>I need to save a file(image) to a folder.
  If have an image with name "OrignalName", then its saving in their original name in to my specified folder. I'm using </p>
  
  <pre><code>string filename = Path.GetFileName(fileupload1.PostedFile.FileName);
  GenerateFileName(filename);
  fileupload1.SaveAs(Server.MapPath("Images" + filename));
  </code></pre>
  
  <p>How should i change the filename to a unique such as timestamp (yyyymmddMMss)
  Any help will be appreciated.</p>