title: Unable to find model and context class files while using Database first approach
body: <p>I am new to stackoverflow and for .Net MVC 3 as well.</p>
  
  <p>I am building a MVC 3 web-application in .Net by using database first approach. I created the .edmx file through which Visual Studio has generated the model class and context class files automatically.</p>
  
  <p>Now I want to put some validations in my application, but I am unable to locate the auto generated model classes in the "Models" folder. Though I am able to put the validations in designer.cs file of my .edmx file, where the public partial class appears for my applications "UserDetails" table.</p>
  
  <p>Please clarify, that how can I locate those auto-generated model class files, or tell me if the approach which I tried is a good practice to put the validations inside the designer.cs file of my .edmx file?</p>