post-redirect-get

How to handle concurrency clash in ASP.Net MVC using post-redirect-get?

I use a post-redirect-get (PRG) pattern to save an entity in ASP.Net MVC 2. The controller methods are 'Save' (inserts or updates database) and 'Edit' (retrieves user input). In 'Save', I do modification check before saving by checking a 'version' column of the entity. If someone else has modified the entity, the 'version' column will no...