<p>Or vice versa.</p>

<p>Update:<br>
Hmm, let's assume I have a shopping cart app, the user clicks on the Checkout button.
The next thing I want to do is send the user to a Invoice.aspx page (or similar). When the user hits checkout, I could <code>Button.PostBackURL = "Invoice.aspx"</code></p>

<p>or I could do  </p>

<pre><code>Server.Transfer("Invoice.aspx")
</code></pre>

<p>(I also changed the title since the method is called Transfer and not TransferURL)</p>

[{'answer_id': 65975, 'author': 'Gulzar Nazim', 'author_id': 4337, 'author_profile': 'https://Stackoverflow.com/users/4337', 'pm_score': 1, 'selected': False, 'text': '<p>Server.Transfer is done entirely from the server. Postback is initiated from the client for posting form contents and postback url identifies the page to post to.</p>\n\n<p>Maybe you meant to compare with Response.Redirect, which forces the client to submit a new request for a new url.</p>\n'}, {'answer_id': 66015, 'author': 'Thunder3', 'author_id': 2832, 'author_profile': 'https://Stackoverflow.com/users/2832', 'pm_score': 2, 'selected': False, 'text': '<p>Here is a good breakdown between the two:</p>\n\n<p><a href="http://www.developer.com/net/asp/article.php/3299641" rel="nofollow noreferrer">Server.Transfer vs Response.Redirect</a></p>\n'}, {'answer_id': 66020, 'author': 'Dave Carroll', 'author_id': 9455, 'author_profile': 'https://Stackoverflow.com/users/9455', 'pm_score': 4, 'selected': True, 'text': '<ul>\n<li>Server.TransferURL will not result\nin a roundtrip of HTTP\nrequest/response.  The address bar\nwill not update, as far as the\nbrowser knows it has received only\none document. Server.Transfer also retains execution context, so the script "keeps going" as opposed to "starts anew".</li>\n<li>PostbackURL ensures an\nHTTP request, resulting in a\npossibly different URL and of course\nincurring network latency costs.</li>\n</ul>\n\n<p>Usually when you are attempting to "decide between the two" it means you are better off using PostbackURL.  </p>\n\n<p>Feel free to expand your question with specifics and we can look at your precise needs.</p>\n'}]
['https://Stackoverflow.com/questions/65956', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/4298/']