Fluent mapping & enum properties

[Erik]

Hello,

I'm getting a designer time error when i make a property enumerable:

Public Enum OrderStatus
    Unknown = 0
    Processing
    Shipped
    Delivering
    Canceled
End Enum

Public Class Order

    Private mloc_OrderId As Long
    Public Property OrderId As Long
        Get
            Return mloc_OrderId
        End Get
        Set(ByVal value As Long)
            mloc_OrderId = value
        End Set
    End Property

    Private mloc_OrderStatus As OrderStatus
    Public Property OrderStatus As OrderStatus
        Get
            Return mloc_OrderStatus
        End Get
        Set(ByVal value As OrderStatus)
            mloc_OrderStatus = value
        End Set
    End Property

    .....

End Class

Public Function GetConfiguration() As MappingConfiguration
    Dim Configuration As New MappingConfiguration(Of Order)()
    With Configuration
        .MapType(Function(p) New With {p}).WithConcurencyControl(OptimisticConcurrencyControlStrategy.Changed).ToTable("Orders")
        .FieldNamingRules.AddPrefix = "mloc_"
        .HasProperty(Function(f) f.OrderId).IsIdentity(KeyGenerator.Autoinc).HasFieldName("mloc_OrderId").WithDataAccessKind(DataAccessKind.ReadWrite).ToColumn("OrderId").IsNotNullable().HasColumnType("bigint").HasPrecision(0).HasScale(0)
        .HasProperty(Function(f) f.OrderStatus).HasFieldName("mloc_OrderStatus").WithDataAccessKind(DataAccessKind.ReadWrite).ToColumn("OrderStatus").IsNotNullable().HasColumnType("int").HasPrecision(0).HasScale(0)
        .....

The VS editor gives the following error:
Overload resolution failed because no accessible 'HasProperty' is most specific for these arguments:
    'Public Function HasProperty(Of TKey, TValue)(expression As System.Linq.Expressions.Expression(Of System.Func(Of Table, System.Collections.Generic.IDictionary(Of TKey, TValue)))) As Telerik.OpenAccess.Metadata.Fluent.PrimitiveDictionaryPropertyConfiguration(Of Table, TKey, TValue)': Not most specific.
    'Public Function HasProperty(expression As System.Linq.Expressions.Expression(Of System.Func(Of Table, System.Enum))) As Telerik.OpenAccess.Metadata.Fluent.PrimitivePropertyConfiguration': Not most specific.
    'Public Function HasProperty(expression As System.Linq.Expressions.Expression(Of System.Func(Of Table, Integer))) As Telerik.OpenAccess.Metadata.Fluent.PrimitivePropertyConfiguration': Not most specific.

While it states here that it should be possible:
http://www.telerik.com/help/openaccess-orm/fluent-mapping-mapping-clr-enum-support.html 

Must I do more? I do want to use explicit mapping.

Thanks,

Erik

[Serge]

Hello Erik, 

 The problem seems to be that the correct overload cannot be resolved. This is easier in C# given that the enum is implicitly convertable to an integer. In order to make it work you need to change your mapping code a little. Just change this expression Function(f) f.OrderStatus  to Function(f) CType(f.OrderStatus, Integer).

I also noticed you are creating your mapping configuration in your class. I want to mention that it will not be picked up if it is not a Shared function that is not returning it. 

I hope this is helpful. Do let me know should you face more trouble.
 
All the best,
Serge
the Telerik team