Lightspeed 4.0 removes readonly property

Hi there,

I have a problem where when i modify any of the entities and run visual studio and make any changes via the site i get the following error:

The column "CanBeDisplayed" cannot be modified because it is either a computed column or is the result of a UNION operator.
The column "ParentEnabled" cannot be modified because it is either a computed column or is the result of a UNION operator.

These are two computed columns that should never be modified by lightspeed. Both of these fields are set to LoadOnly. 
What happens is that the readonly property gets removed:

    #pragma warning disable 649  // "Field is never assigned to" - LightSpeed assigns these fields internally
    [System.Runtime.Serialization.DataMember]
    private System.Nullable<bool> _parentEnabled;
    [System.Runtime.Serialization.DataMember]
    private bool _canBeDisplayed;
    #pragma warning restore 649   

I can workaround this by manually adding the readolny property back in to resolve this. But as you can tell it's a hassle doing it all the time.

Is there something that I have missed?

thanks

Hem

This appears to occur if your model project references the WCF assemblies.  In that case we assume you want to be able to use your entities in WCF interfaces, and the readonly qualifier is not compatible with that.  Either remove the WCF references from the project containing the model, or move the model into a new project which does not include the WCF references.

I will talk to our WCF chap and see whether we can improve this or failing that at least add a warning for this because it is certainly unexpected behaviour!

Hi Ivan, thanks for the reply.

Is there another solution rather than a workaround? we do use WCF references and moving the model out is unfeasible at present.

Thanks

It is possible to suppres WCF compatibility using a secret switch.  This however will mean you cannot use the entities in WCF data contracts.

If you don't need to use the entities in data contracts, you can suppress "WCF compatible mode" as follows:

* Close your solution in Visual Studio.
* Open the .lsmodel file in Notepad or a XML editor.
* Locate the <model> element (it will normally be on line 2 of the file).
* Add the following XML attribute to the element: codeGenerationOptions="SuppressDtos"
* Save changes, reopen the solution, and make a change to the model to force it to regenerate.

Brilliant thanks!