.net - How to assign a master page to a existing .aspx page?

Question

How to assign a master page to a existing .aspx page ?

Answer 1

Add this to your existing aspx Page declaration:

MasterPageFile="~/SomeMasterPage.Master"

Should also mention that to add page specific content to your Page you also need to add any Content tags (defined in your Master Page) to your aspx page also:

 <asp:Content ID="myContent" ContentPlaceHolderID="someContent" runat="server">

      // Page Content goes here

 </asp:Content>

If you don't put these in then the default content from your Master Page is used instead.