Why should I use view models?

Using Entity Framework will generate the business model objects and manage Data Access within the application. As a result, Your tables will be converted to classes and it features all the fields from the database table as properties of the class. For example if you have a table "Customer" that holds the following properties:

CustomerID

FirstName

LastName

DateOfBirth

Age

PhoneNumber

Now if you need to pick some fields in that table then you could use a ViewModel. That way you don't need to use the class that holds all the properties directly in your View. So if you just need the FirstName and LastName from the table/class "Customer" then you can create a separate class that just holds the properties you need in the View.

publicclassCutomerViewModel{
publicstringFirstName{get;set;}
publicstringLastName{get;set;}
}

I would recommend you to start looking into this article to get more details about using ViewModels:http://www.c-sharpcorner.com/UploadFile/8c19e8/building-web-application-using-entity-framework-database-fir/

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Vincent Maverick Durano10y ago
Using Entity Framework will generate the business model objects and manage Data Access within the application. As a result, Your tables will be converted to classes and it features all the fields from the database table as properties of the class. For example if you have a table "Customer" that holds the following properties:
CustomerID
FirstName
LastName
DateOfBirth
Age
PhoneNumber
Now if you need to pick some fields in that table then you could use a ViewModel. That way you don't need to use the class that holds all the properties directly in your View. So if you just need the FirstName and LastName from the table/class "Customer" then you can create a separate class that just holds the properties you need in the View.
publicclassCutomerViewModel{
publicstringFirstName{get;set;}
publicstringLastName{get;set;}
}
I would recommend you to start looking into this article to get more details about using ViewModels:http://www.c-sharpcorner.com/UploadFile/8c19e8/building-web-application-using-entity-framework-database-fir/
0