Silverlight / WPF - Unable to build wcf application

Hi, i am new to silverlight.

Basically, i would like to save employee details to the server through WCF Service.

Here are the brief steps about my application :

1. I have a Silverlight Application Project 'MySilverlightApp' which is having a Employee Class and it implements INotifyPropertyChanged interface.So, i prepared Employee object with Name,Id and Address for sending it to the WCF service.

2. I have another WCF Application Project with 'EmployeeService' service. Here i have referenced to 'MySilverlightApp' application for getting 'Employee' object. So that i will receive 'Employee' object from silverlight application for saving the record to the database.

3. I have added the webservice reference in my silverlight project.

But when i build the project, i am getting an error as follows :

Error 1 The type 'System.ComponentModel.INotifyPropertyChanged' is defined in an assembly that is not referenced. You must add a reference to assembly 'System, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e'. D:\SilverlightApplication\WcfService\IService1.cs 15 16 WcfService.

I think this problem might be with the INotifyPropertyChanged Interface which is implemented by my 'Employee' class. I cant move my Employee class to the WCF Service project, because my current project having all class files in the silverlight application.

Please help me to solve my problem.Any solution will be appreciated.

Thanks and Regards,

Veerendra

Most of the data transfer classes I've seen are either defined on the server-side assemblies or an assembly shared by the client and the server. You can go for the latter.

Thanks Michael for quick reply.

But most of my class files are defined in the silverlight application and i couldn't move them to the WCF service application or some other Is there any other way to access the silverlight classes?

Thanks,

Veerendra

Thanks Michael.

I tried your solution, but i am unable to add reference to'Class Library' from my silverlight application as i am getting the following error :

'You cant add reference to classlibrary.dll as it was not built against silverlight rutime. silverlight projects will only works with silverlight assemblies.'

I dont think that we can add reference to normal class library from silverlight applications.

Thanks

Veerendra

http://forums.silverlight.net/forums/t/13967.aspx

You can check the answer in that forum. It says that the data contracts should be defined in your server-side assemblies. When you add a service reference to your Silverlight project, xml schema and the exchange contract will be generated. You can use the generated classes instead.

Thanks Michael for your quick replay.

Anyway, i will try your link.