Change the doctype of an aspx page dinamically

Question

We use master pages in our web application, and the doctype is defined in the master page. On one of the pages I need to change the doctype, or else a third-party control renders incorrectly.

How can I change the doctype of only that certain page, without affecting the rest of the pages?

Answer 1

I don't know if it would work but

You can reset the content type with

Response.Clear();
Response.ContentType = "text/html";

Then write your doctype type

Response.Write(<new doc-type>);

But you will also loose all meta headers and such, you're probably better off with the other solution provided by Chris Lively...

Answer 2

By far the simplest way is to make another copy of your master page, change the doctype in that and have this page use the new master.