Use interfaces of the models in OpenAccessContext

[Christiaan Molendijk]

I like to know if it is possible to use interfaces to define your models in the OpenAccessContext.

So now we have the following code.

public partial class DataContext : OpenAccessContext
   {
       static MetadataContainer metadataContainer = new DataMetadataSource().GetModel();
       static BackendConfiguration backendConfiguration = new BackendConfiguration()
       {
           Backend = "mssql"
       };
       private const string DbConnection = "connectionID";
       public DataContext()
           : base( DbConnection, backendConfiguration, metadataContainer )
       {
       }

       public IQueryable<Product> Products
       {
           get
           {
               return this.GetAll<Product>();
           }
       }

       public IQueryable<Category> Categories
       {
           get
           {
               return this.GetAll<Category>();
           }
       }
       // Rest of the code
   }

Is it possible to change it into:

public partial class DataContext : OpenAccessContext
   {
       static MetadataContainer metadataContainer = new DataMetadataSource().GetModel();
       static BackendConfiguration backendConfiguration = new BackendConfiguration()
       {
           Backend = "mssql"
       };
       private const string DbConnection = "connectionID";
       public DataContext()
           : base( DbConnection, backendConfiguration, metadataContainer )
       {
       }

       public IQueryable<IProduct> Products
       {
           get
           {
               return this.GetAll<IProduct>();
           }
       }

       public IQueryable<ICategory> Categories
       {
           get
           {
               return this.GetAll<ICategory>();
           }
       }
       // Rest of the code
   }

So that the IQueryable also use the interfaces of the models.

[Kaloyan Nikolov]

Hello Christiaan,

Unfortunately Telerik Data Access doesn't support this case at the moment. You will not be able to use the GetAll<>() method with other types than the classes defined in your model. 

Should you have any other questions do not hesitate to get back to us. 

Regards,
Kaloyan Nikolov
Telerik