Enumerations as keys in a Dictionary object

Hi,

 

In the server side I’ve got an (imaginary) enumeration object, say ScaleType.

 

           public enum ScaleType

           {

                      Kilograms = 1,

                      Pounds = 2

           }

 

The enumeration is used as a key in a dictionary property of a domain object, e.g.

 

                      private Dictionary<ScaleType, System.Decimal?> _scales = new Dictionary<ScaleType, System.Decimal?>();

                      public Dictionary<ScaleType, System.Decimal?> scales

                      {

                                 get { return this._scales; }

                                 set { this._scales = value; }

                      }

 

This domain object is then sent to the client with the great help of FluorineFX. The resulting object has the enumeration names as keys, not corresponding numeric values. For example, if we send this object

 

Dictionary<ScaleType, System.Decimal?> scales = new Dictionary<ScaleType, System.Decimal?> { { ScaleType.Kilograms, 1m }, { ScaleType.Pounds, 1.5m } };

 

to the client, the result is

 

var scales:Object = { “Kilograms” : 1, “Pounds” : 1.5 };

 

not { “1” : 1, “2” : 1.5 } as one could expect according to the conversion table http://www.fluorinefx.com/docs/fluorine/typeconversion.html.

 

 

This behavior would be fine by us if the enumeration would otherwise always convert to the string equivalent, but this is not the case. If we send enumeration ScaleType.Kilograms to the client as a property value inside a transferred domain object it is converted to Number (or string equivalent if the AS property is string), not as text “Kilograms”. This leads us into problems, the enumeration is converted in one case to strings and in the other to Numbers. To conform the table mentioned above I guess that Fluorine should convert the keys in the Dictionary object to the Number equivalents. Could you comment this and fix the bug if it is one.

 

Best regards,

--
Ilkka Kudjoi
Software Designer
analyse²

E-mail: ilkka.kudjoi@...
http://www.analyse2.com

 

Hi,

 

In the server side I’ve got an (imaginary) enumeration object, say ScaleType.

 

           public enum ScaleType

           {

                      Kilograms = 1,

                      Pounds = 2

           }

 

The enumeration is used as a key in a dictionary property of a domain object, e.g.

 

                      private Dictionary<ScaleType, System.Decimal?> _scales = new Dictionary<ScaleType, System.Decimal?>();

                      public Dictionary<ScaleType, System.Decimal?> scales

                      {

                                 get { return this._scales; }

                                 set { this._scales = value; }

                      }

 

This domain object is then sent to the client with the great help of FluorineFX. The resulting object has the enumeration names as keys, not corresponding numeric values. For example, if we send this object

 

Dictionary<ScaleType, System.Decimal?> scales = new Dictionary<ScaleType, System.Decimal?> { { ScaleType.Kilograms, 1m }, { ScaleType.Pounds, 1.5m } };

 

to the client, the result is

 

var scales:Object = { “Kilograms” : 1, “Pounds” : 1.5 };

 

not { “1” : 1, “2” : 1.5 } as one could expect according to the conversion table http://www.fluorinefx.com/docs/fluorine/typeconversion.html.

 

 

This behavior would be fine by us if the enumeration would otherwise always convert to the string equivalent, but this is not the case. If we send enumeration ScaleType.Kilograms to the client as a property value inside a transferred domain object it is converted to Number (or string equivalent if the AS property is string), not as text “Kilograms”. This leads us into problems, the enumeration is converted in one case to strings and in the other to Numbers. To conform the table mentioned above I guess that Fluorine should convert the keys in the Dictionary object to the Number equivalents. Could you comment this and fix the bug if it is one.

 

Best regards,

--
Ilkka Kudjoi
Software Designer
analyse²

E-mail: ilkka.kudjoi@...
http://www.analyse2.com

 

Hi,

 

Thanks for the answer, we’ll manage this somehow.

 

-          Ilkka

 

 

Hi,

 

From: fluorine-bounces@... [mailto:fluorine-bounces@...] On Behalf Of Ilkka Kudjoi
Sent: Monday, August 24, 2009 12:31 PM
To: fluorine@...
Subject: [Fluorine] Enumerations as keys in a Dictionary object

Hi,

 

In the server side I’ve got an (imaginary) enumeration object, say ScaleType.

 

           public enum ScaleType

           {

                      Kilograms = 1,

                      Pounds = 2

           }

 

The enumeration is used as a key in a dictionary property of a domain object, e.g.

 

                      private Dictionary<ScaleType, System.Decimal?> _scales = new Dictionary<ScaleType, System.Decimal?>();

                      public Dictionary<ScaleType, System.Decimal?> scales

                      {

                                 get { return this._scales; }

                                 set { this._scales = value; }

                      }

 

This domain object is then sent to the client with the great help of FluorineFX. The resulting object has the enumeration names as keys, not corresponding numeric values. For example, if we send this object

 

Dictionary<ScaleType, System.Decimal?> scales = new Dictionary<ScaleType, System.Decimal?> { { ScaleType.Kilograms, 1m }, { ScaleType.Pounds, 1.5m } };

 

to the client, the result is

 

var scales:Object = { “Kilograms” : 1, “Pounds” : 1.5 };

 

not { “1” : 1, “2” : 1.5 } as one could expect according to the conversion table http://www.fluorinefx.com/docs/fluorine/typeconversion.html.

 

 

This behavior would be fine by us if the enumeration would otherwise always convert to the string equivalent, but this is not the case. If we send enumeration ScaleType.Kilograms to the client as a property value inside a transferred domain object it is converted to Number (or string equivalent if the AS property is string), not as text “Kilograms”. This leads us into problems, the enumeration is converted in one case to strings and in the other to Numbers. To conform the table mentioned above I guess that Fluorine should convert the keys in the Dictionary object to the Number equivalents. Could you comment this and fix the bug if it is one.

 

Best regards,

--
Ilkka Kudjoi
Software Designer
analyse²

E-mail: ilkka.kudjoi@...
http://www.analyse2.com