RequiresRoleAttribute.Roles Property
WCF RIA Services
[WCF RIA Services Version 1 Service Pack 2 is compatible with either .NET framework 4 or .NET Framework 4.5, and with either Silverlight 4 or Silverlight 5.]
Gets the roles that are permitted to invoke the operation.
Namespace: System.ServiceModel.DomainServices.Server
Assembly: System.ServiceModel.DomainServices.Server (in System.ServiceModel.DomainServices.Server.dll)