[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.]
For a failed operation, marks the error as handled so the exception is not thrown.
Assembly: System.Windows.Controls.DomainServices (in System.Windows.Controls.DomainServices.dll)
When the HasError is true, this method marks the error as handled. If this method is not called for a failed operation, an exception will be thrown.