InvalidDataContractException Class
.NET Framework 3.0
The exception that is thrown when the DataContractSerializer or NetDataContractSerializer encounters an invalid data contract during serialization and deserialization.
Namespace: System.Runtime.Serialization
Assembly: System.Runtime.Serialization (in system.runtime.serialization.dll)
Assembly: System.Runtime.Serialization (in system.runtime.serialization.dll)
'Declaration <SerializableAttribute> _ Public Class InvalidDataContractException Inherits Exception 'Usage Dim instance As InvalidDataContractException
/** @attribute SerializableAttribute() */ public class InvalidDataContractException extends Exception
SerializableAttribute public class InvalidDataContractException extends Exception
Not applicable.
The following example shows a service contract, ICalculator, that includes two methods, Add and MoreData. The MoreData method returns an instance of the ExtraData class, which is also declared in the code. When the implemented interface Calculator runs, an InvalidDataContractException will be thrown because the ExtraData class does not have the DataContractAttribute applied to it.
Public Class Test Shared Sub Main() Try Dim t As New Test() t.Run() ' Catch the InvalidDataContractException here. Catch iExc As InvalidDataContractException Console.WriteLine("You have an invalid data contract: ") Console.WriteLine(iExc.Message) Console.ReadLine() Catch exc As Exception Console.WriteLine(exc.Message) Console.WriteLine(exc.ToString()) Console.ReadLine() End Try End Sub Private Sub Run() ' Create a new WSHttpBinding and set the security mode to Message; Dim b As New WSHttpBinding(SecurityMode.Message) ' Create a ServiceHost instance, and add a metadata endpoint. Dim baseUri As New Uri("http://localhost:1008/") Dim sh As New ServiceHost(GetType(Calculator), baseUri) ' Optional. Add a metadata endpoint. The method is defined below. AddMetadataEndpoint(sh) ' Add an endpoint using the binding, and open the service. sh.AddServiceEndpoint(GetType(ICalculator), b, "myCalculator") sh.Open() Console.WriteLine("Listening...") Console.ReadLine() End Sub Private Sub AddMetadataEndpoint(ByRef sh As ServiceHost) Dim mex As New Uri("http://localhost:1001/metadata/") Dim sm As New ServiceMetadataBehavior() sm.HttpGetEnabled = True sm.HttpGetUrl = mex sh.Description.Behaviors.Add(sm) End Sub End Class ' This class will cause an InvalidDataContractException to be thrown because ' neither the DataContractAttribute nor DataMemberAttribute has been applied to it. Public Class ExtraData Public RandomData As System.Collections.Generic.List(Of String) End Class <ServiceContract(ProtectionLevel := System.Net.Security.ProtectionLevel.EncryptAndSign)> _ Interface ICalculator <OperationContract()> _ Function Add(ByVal a As Double, ByVal b As Double) As Double <OperationContract()> _ Function MoreData() As ExtraData End Interface Public Class Calculator Implements ICalculator Public Function Add(ByVal a As Double, ByVal b As Double) As Double _ Implements ICalculator.Add Return a + b End Function Public Function MoreData() As ExtraData Implements ICalculator.MoreData Dim ex As New ExtraData() ex.RandomData.Add("Hello") ex.RandomData.Add("World") Return ex End Function End Class
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
ADD
Show: