Implementing the view model class

Because the web services in Sitefinity follow the MVVM pattern, you must implement a view model class by performing the following:

1. From the context menu of the folder Web » Services » Data in the LocationsModule project, click Add » Class.
2. Name the class file LocationItemViewModel.cs and click Add.
3. Open the file LocationItemViewModel.cs.

4. Add the following using statements:

   • using Telerik.Sitefinity.Modules;
   • using Telerik.Sitefinity.GenericContent.Model;
   • using LocationsModule.Model;
   • using Telerik.Sitefinity.Modules.GenericContent;

5. Make the LocationItemViewModel class inherit the ContentViewModelBase class:

   public class LocationItemViewModel : ContentViewModelBase

   {

   }

6. Create the following constructors:

   public LocationItemViewModel()

       : base()

   {

   }

    

   public LocationItemViewModel(LocationItem location, ContentDataProviderBase provider)

       : base(location, provider)

   {

       this.Address = location.Address;

       this.City = location.City;

       this.Region = location.Region;

       this.PostalCode = location.PostalCode;

   }

7. Define properties that match the properties in the LocationItem class. Following is the code for the Address, City, Region and PostalCode properties:

   public string Address { get; set; }

   public string City { get; set; }

   public string Region { get; set; }

   public string PostalCode { get; set; }

8. Implement the abstract members of the ContentViewModelBase class in the following way:

   protected override Content GetLive()

   {

       return this.provider.GetLiveBase<LocationItem>((LocationItem)this.ContentItem);

   }

    

   protected override Content GetTemp()

   {

       return this.provider.GetTempBase<LocationItem>((LocationItem)this.ContentItem);

   }