InvalidDataContractException InvalidDataContractException InvalidDataContractException InvalidDataContractException Class

定義

DataContractSerializerNetDataContractSerializer 在序列化 (Serialization) 和還原序列化 (Deserialization) 期間遇到無效的資料合約時,所擲回的例外狀況。The exception that is thrown when the DataContractSerializer or NetDataContractSerializer encounters an invalid data contract during serialization and deserialization.

public ref class InvalidDataContractException : Exception
[System.Serializable]
public class InvalidDataContractException : Exception
type InvalidDataContractException = class
    inherit Exception
Public Class InvalidDataContractException
Inherits Exception
繼承
InvalidDataContractExceptionInvalidDataContractExceptionInvalidDataContractExceptionInvalidDataContractException
屬性

範例

下列範例會示範包含 ICalculatorAdd 兩種方法的 MoreData 服務合約。The following example shows a service contract, ICalculator, that includes two methods, Add and MoreData. MoreData 方法會傳回 ExtraData 類別的執行個體,這個類別也已經宣告在程式碼中。The MoreData method returns an instance of the ExtraData class, which is also declared in the code. 當實作的介面 Calculator 執行時,因為 InvalidDataContractException 類別沒有套用 ExtraData,所以將會擲回 DataContractAttributeWhen 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
{
    static void Main()
    {
        try
        {
            Test t = new Test();
            t.Run();
        }
             
        // Catch the InvalidDataContractException here.
        catch(InvalidDataContractException iExc)
        {
            Console.WriteLine("You have an invalid data contract: ");
            Console.WriteLine(iExc.Message);
            Console.ReadLine();
            
        }
          catch (Exception exc)
        {
            Console.WriteLine(exc.Message);
            Console.WriteLine(exc.ToString() );
            Console.ReadLine();
        }
    }

    private void Run()
    {
        // Create a new WSHttpBinding and set the security mode to Message;
        WSHttpBinding b = new WSHttpBinding(SecurityMode.Message);

        // Create a ServiceHost instance, and add a metadata endpoint.
        Uri baseUri= new Uri("http://localhost:1008/");            
        ServiceHost sh = new ServiceHost(typeof(Calculator), baseUri);

        // Optional. Add a metadata endpoint. The method is defined below.
        AddMetadataEndpoint(ref sh);

        // Add an endpoint using the binding, and open the service.
        sh.AddServiceEndpoint(typeof(ICalculator), b, "myCalculator");
        sh.Open();
        
        Console.WriteLine("Listening...");
        Console.ReadLine();

    }

    private void AddMetadataEndpoint(ref ServiceHost sh)
    {
        Uri mex = new Uri(@"http://localhost:1001/metadata/");
        ServiceMetadataBehavior sm = new ServiceMetadataBehavior();
        sm.HttpGetEnabled = true;
        sm.HttpGetUrl = mex;
        sh.Description.Behaviors.Add(sm);
    }
    
}

// This class will cause an InvalidDataContractException to be thrown because
// neither the DataContractAttribute nor DataMemberAttribute has been applied to it.
public class ExtraData
{
    public System.Collections.Generic.List<string> RandomData;
}

[ServiceContract(ProtectionLevel=System.Net.Security.ProtectionLevel.EncryptAndSign) ]
interface ICalculator
{
    [OperationContract]
    double Add(double a, double b);

    [OperationContract]
    ExtraData MoreData();
}

public class Calculator : ICalculator
{ 
    public double Add(double a, double b)
    {
        return a + b;
    }

    public ExtraData MoreData()
    {
        ExtraData ex = new ExtraData();
        ex.RandomData.Add("Hello");
        ex.RandomData.Add( "World" );
        return ex;
    }
}
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 

備註

如果 DataContractSerializerNetDataContractSerializer 偵測到要序列化或還原序列化的執行個體型別無效時,就會擲回這個型別的執行個體。An instance of this type will be thrown if the DataContractSerializer or NetDataContractSerializer detects that the type of the instance being serialized or deserialized is invalid. 如果結構描述匯入或匯出引擎中傳入了無效的型別,這時也會擲回這個型別的執行個體。An instance of this type will also be thrown if an invalid type is passed to the schema import or export engine.

建構函式

InvalidDataContractException() InvalidDataContractException() InvalidDataContractException() InvalidDataContractException()

初始化 InvalidDataContractException 類別的新執行個體。Initializes a new instance of the InvalidDataContractException class.

InvalidDataContractException(SerializationInfo, StreamingContext) InvalidDataContractException(SerializationInfo, StreamingContext) InvalidDataContractException(SerializationInfo, StreamingContext) InvalidDataContractException(SerializationInfo, StreamingContext)

使用指定的 InvalidDataContractExceptionSerializationInfo,初始化 StreamingContext 類別的新執行個體。Initializes a new instance of the InvalidDataContractException class with the specified SerializationInfo and StreamingContext.

InvalidDataContractException(String) InvalidDataContractException(String) InvalidDataContractException(String) InvalidDataContractException(String)

使用指定的錯誤訊息,初始化 InvalidDataContractException 類別的新執行個體。Initializes a new instance of the InvalidDataContractException class with the specified error message.

InvalidDataContractException(String, Exception) InvalidDataContractException(String, Exception) InvalidDataContractException(String, Exception) InvalidDataContractException(String, Exception)

使用指定的錯誤訊息和內部例外狀況,初始化 InvalidDataContractException 類別的新執行個體。Initializes a new instance of the InvalidDataContractException class with the specified error message and inner exception.

屬性

Data Data Data Data

取得提供例外狀況之其他使用者定義相關資訊的索引鍵/值組集合。Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
HelpLink HelpLink HelpLink HelpLink

取得或設定與這個例外狀況相關聯的說明檔連結。Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

取得或設定 HRESULT,它是指派給特定例外狀況的編碼數值。Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

取得造成目前例外狀況的 Exception 執行個體。Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

取得描述目前例外狀況的訊息。Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

取得或設定造成錯誤的應用程式或物件的名稱。Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

取得呼叫堆疊上即時運算框架的字串表示。Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

取得擲回目前例外狀況的方法。Gets the method that throws the current exception.

(Inherited from Exception)

方法

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBaseException() GetBaseException() GetBaseException() GetBaseException()

在衍生類別中覆寫時,傳回一或多個後續的例外狀況的根本原因 ExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext)

在衍生類別中覆寫時,使用例外狀況的資訊設定 SerializationInfoWhen overridden in a derived class, sets the SerializationInfo with information about the exception.

(Inherited from Exception)
GetType() GetType() GetType() GetType()

取得目前執行個體的執行階段類型。Gets the runtime type of the current instance.

(Inherited from Exception)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

建立並傳回目前例外狀況的字串表示。Creates and returns a string representation of the current exception.

(Inherited from Exception)

事件

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

當例外狀況序列化,以建立包含例外狀況相關序列化資料的例外狀況狀態物件時,就會發生此事件。Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

適用於

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