... data into the database. Here&apos ;s a complete code listing for the updated Movie.cs file: usingSystem; usingSystem.Data.Entity; usingSystem.ComponentModel.DataAnnotations; namespaceMvcMovie.Models{ ... error message next to each one. The errors are enforced both client- side (using JavaScript) and server -side (in case a user has JavaScript disabled). A real benefit is that you didn't need ... a single integer as a parameter.) To sort this out, you can do a couple of things. One is to give the methods different names. That&apos ;s what the scaffolding mechanism did in he preceding...