1. ASP.NET MVC Model Binder
Jason

2. Class map

3. Agenda
 Default Model Binder
 FormCollection Model Binder
 HttpPostedFileBase Model Binder
 Binding Attribute
 Custom Model Binder

4. Model Binder

5. Default Model Binder
 The DefaultModelBinder class maps the
following types of objects to a browser request.
 Primitive types, such as String , Double, Decimal , or DateTime objects.
 Collections, such as ICollection<T>, IList<T>, or IDictionary<TKey, TValue>.
 Model classes, such as Person, Address, or Product.

6. Binding To Primitive Values
 Controller：
 View：

7. Binding To Simple Objects

8. Binding To Collection Of Objects
 Controller：
 View：

9. FormCollection Model Binder
 UpdateModel Syntax
 example

10. Formcollection Model Binder
 UpdateModel Syntax
 example

11. HttpPostedFileBase Model Binder
 View：
 Controller：

12. Binding Attribute
 Include
 Gets or sets a comma-delimited list of property names for which binding is
allowed.
 Exclude
 Gets or sets a comma-delimited list of property names for which binding is
not allowed.

13. Binding Attribute

14. Custom Model Binder
 Step1
 You bind your custom object by implementing
the IModelBinder interface.

15. Custom Model Binder
 Step2
 After creating your binder, you need to register the
binder. In Application_Start().

16. Custom Model Binder
PersonModelBinder
Submit
Binding

17. Custom Model Binder
 The first is by decorating the model class

18. Custom Model Binder
 The second is decorating the parameter of your Action
Method directly:

19. Summary
 Easy
 Flexible
 Customize

20. Q & A

21. Reference
 ASP.NET MVC4
 http://www.amazon.com/ASP-NET-MVC-Action-Jeffrey-
Palermo/dp/1617290416
 MSDN
 http://msdn.microsoft.com/zh-
tw/library/system.web.mvc.defaultmodelbinder(v=vs.108).aspx
 Code Project
 http://www.codeproject.com/Articles/551576/ASP-NET-MVC-Model-Binding-and-Data-
Annotation