title: Disabling identity (auto-incrementing) on integer primary key using code first
body: <p>I am using code first approach in a ASP.NET MVC 3 application and all integer primary keys in models (<code>public int Id { get; set; }</code>) are by default configured as an identity with auto-incrementing. How to disable this and enable a way to manually enter the integer for the primary key?</p>
  
  <p>The actual situation is that the <code>Id</code> integers have a special meaning and I would therefore like to have them choosable at creation and later editable. It would be ideal if in case the integer is not given at creation time it is auto-incremented, else the specified value is used. But editable primary fields is my primary need. Is there any way to do this elegantly in ASP.NET MVC 3?</p>