Why Two Classes, View Model and Domain Model?

by

I have found that while my domain model gets me 85% of the way to having the fields I want, it has never covered 100% of the values I want on my view. Especially when it comes to permissions and whether or not a user should have access to certain portions of the view.

The design concept I attempt to follow is to have as little logic in my views as possible. This means I have fields in my view model like “CanViewThisField” or “CanEditThisField.” When I first started with MVC I would have my domain model be my view model and I was always running into the scenario where I needed just one or two more fields to make my view less cluttered. I’ve since gone the View Model/Model Builder route and it has worked wonderfully for me. I don’t battle my code any longer but am able to enhance my view model as I need to without affecting the domain model.

More Related Contents:

  1. Two models in one view in ASP MVC 3
  2. MVC3 Non-Sequential Indices and DefaultModelBinder
  3. When do I use View Models, Partials, Templates and handle child bindings with MVC 3
  4. RequiredIf Conditional Validation Attribute
  5. Custom error pages on asp.net MVC3
  6. Proper way to use AJAX Post in jquery to pass model from strongly typed MVC3 view
  7. How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
  8. Ignore mapping one property with Automapper
  9. Razor HtmlHelper Extensions (or other namespaces for views) Not Found
  10. Checkbox for nullable boolean
  11. dropdownlist set selected value in MVC3 Razor
  12. MVC Razor dynamic model, ‘object’ does not contain definition for ‘PropertyName’
  13. Application_Error not firing when customerrors = “On”
  14. DropdownListFor default value
  15. what is the function of webpages:Enabled in MVC 3 web.config
  16. How to set a CheckBox by default Checked in ASP.Net MVC
  17. Unexpected “foreach” keyword after “@” character
  18. The name ‘model’ does not exist in current context in MVC3
  19. Default ASP.NET MVC 3 model binder doesn’t bind decimal properties
  20. ASP.NET MVC DropDownListFor not selecting value from model
  21. How to validate one field related to another’s value in ASP .NET MVC 3
  22. what is difference between a Model and an Entity
  23. Razor comment syntax
  24. @Html.BeginForm Displaying “System.Web.Mvc.Html.MvcForm” on Page
  25. Disabling identity (auto-incrementing) on integer primary key using code first
  26. Currency Formatting MVC
  27. Ninject Binding Attribute to Filter with Constructor Arguments
  28. Could not load file or assembly ‘System.Data.Entity
  29. How to extend MVC3 Label and LabelFor HTML helpers?
  30. Correct way to bind an mvc3 radiobutton to a model

Leave a Comment