CryptographicException 類別

定義

密碼編譯作業中發生錯誤時所擲回的例外狀況。The exception that is thrown when an error occurs during a cryptographic operation.

public ref class CryptographicException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class CryptographicException : SystemException
type CryptographicException = class
    inherit SystemException
Public Class CryptographicException
Inherits SystemException
繼承
CryptographicException
衍生
屬性

範例

下列程式碼範例示範如何使用 CryptographicException 類別的成員。The following code example demonstrates how to use members of the CryptographicException class.

using namespace System;
using namespace System::Text;
using namespace System::Security::Cryptography;
using namespace System::Runtime::Serialization;

ref class CryptographicExceptionMembers
{
public:

   static void Run()
   {
      CryptographicExceptionMembers^ testRun = gcnew CryptographicExceptionMembers;
      testRun->TestConstructors();
      testRun->ShowProperties();
      Console::WriteLine( L"This sample ended successfully; "
      L" press Enter to exit." );
      Console::ReadLine();
   }

private:
   // Test each public implementation of the CryptographicException
   // constructors.
   void TestConstructors()
   {
      EmptyConstructor();
      IntConstructor();
      StringConstructor();
      StringExceptionConstructor();
      StringStringConstructor();
   }

   void EmptyConstructor()
   {
      // Construct a CryptographicException with no parameters.
      CryptographicException^ cryptographicException = gcnew CryptographicException;
      
      Console::WriteLine( L"Created an empty CryptographicException." );
   }

   void IntConstructor()
   {
      // Construct a CryptographicException using the error code for an
      // unexpected operation exception.
      int exceptionNumber = (int)0x80131431;
      CryptographicException^ cryptographicException = gcnew CryptographicException( exceptionNumber );

      Console::WriteLine( L"Created a CryptographicException with the "
      L"following error code: {0}", exceptionNumber );
   }

   void StringConstructor()
   {
      // Construct a CryptographicException using a custom error message.
      String^ errorMessage = (L"Unexpected Operation exception.");
      CryptographicException^ cryptographicException = gcnew CryptographicException( errorMessage );

      Console::WriteLine( L"Created a CryptographicException with the "
      L"following error message: {0}", errorMessage );
   }

   void StringExceptionConstructor()
   {
      // Construct a CryptographicException using a custom error message
      // and an inner exception.
      String^ errorMessage = (L"The current operation is not supported.");
      NullReferenceException^ nullException = gcnew NullReferenceException;
      CryptographicException^ cryptographicException = gcnew CryptographicException( errorMessage,nullException );

      Console::WriteLine( L"Created a CryptographicException with the "
      L"following error message: {0} and the inner exception of {1}", errorMessage, nullException );
   }

   void StringStringConstructor()
   {
      // Create a CryptographicException using a time format and a the
      // current date.
      String^ dateFormat = L"{0:t}";
      String^ timeStamp = (DateTime::Now.ToString());
      CryptographicException^ cryptographicException = gcnew CryptographicException( dateFormat,timeStamp );

      Console::WriteLine( L"Created a CryptographicException with ({0}) as the format and ({1}) as the message.", dateFormat, timeStamp );
   }

   // Construct an invalid DSACryptoServiceProvider to throw a
   // CryptographicException for introspection.
   void ShowProperties()
   {
      try
      {
         // Create a DSACryptoServiceProvider with invalid provider type
         // code to throw a CryptographicException exception.
         CspParameters^ cspParams = gcnew CspParameters( 44 );
         DSACryptoServiceProvider^ DSAalg = gcnew DSACryptoServiceProvider( cspParams );
      }
      catch ( CryptographicException^ ex ) 
      {
         // Retrieve the link to the help file for the exception.
         String^ helpLink = ex->HelpLink;

         // Retrieve the exception that caused the current
         // CryptographicException exception.
         System::Exception^ innerException = ex->InnerException;

         String^ innerExceptionMessage = L"";
         if ( innerException != nullptr )
         {
            innerExceptionMessage = innerException->ToString();
         }
         
         // Retrieve the message that describes the exception.
         String^ message = ex->Message;

         // Retrieve the name of the application that caused the exception.
         String^ exceptionSource = ex->Source;

         // Retrieve the call stack at the time the exception occurred.
         String^ stackTrace = ex->StackTrace;

         // Retrieve the method that threw the exception.
         System::Reflection::MethodBase^ targetSite = ex->TargetSite;

         String^ siteName = targetSite->Name;
         
         // Retrieve the entire exception as a single string.
         String^ entireException = ex->ToString();

         // GetObjectData
         setSerializationInfo(  &ex );
         
         // Get the root exception that caused the current
         // CryptographicException exception.
         System::Exception^ baseException = ex->GetBaseException();

         String^ baseExceptionMessage = L"";
         if ( baseException != nullptr )
         {
            baseExceptionMessage = baseException->Message;
         }
         Console::WriteLine( L"Caught an expected exception:" );
         Console::WriteLine( entireException );
         Console::WriteLine( L"\n" );
         Console::WriteLine( L"Properties of the exception are as follows:" );
         Console::WriteLine( L"Message: {0}", message );
         Console::WriteLine( L"Source: {0}", exceptionSource );
         Console::WriteLine( L"Stack trace: {0}", stackTrace );
         Console::WriteLine( L"Help link: {0}", helpLink );
         Console::WriteLine( L"Target site's name: {0}", siteName );
         Console::WriteLine( L"Base exception message: {0}", baseExceptionMessage );
         Console::WriteLine( L"Inner exception message: {0}", innerExceptionMessage );
      }

   }

   void setSerializationInfo( interior_ptr<CryptographicException^> ex )
   {
      // Insert information about the exception into a serialized object.
      FormatterConverter^ formatConverter = gcnew FormatterConverter;
      SerializationInfo^ serializationInfo = gcnew SerializationInfo( ( *ex)->GetType(),formatConverter );
      StreamingContext streamingContext = StreamingContext(StreamingContextStates::All);
      ( *ex)->GetObjectData( serializationInfo, streamingContext );
   }

};

void main()
{
   CryptographicExceptionMembers::Run();
}

//
// This sample produces the following output:
//
// Created an empty CryptographicException.
// Created a CryptographicException with the following error code: -2146233295
// Created a CryptographicException with the following error message:
// Unexpected Operation exception.
// Created a CryptographicException with the following error message: The
// current operation is not supported. and the inner exception of
// System.NullReferenceException: Object reference not set to an instance of
// an object.
// Created a CryptographicException with ({0:t}) as the format and (2/24/2004
// 2:13:15 PM) as the message.
// Caught an expected exception:
// System.Security.Cryptography.CryptographicException: CryptoAPI
// cryptographic service provider (CSP) for this implementation could not be
// acquired.
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(Int32
// dwKeySize, CspParameters parameters)
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// CspParametersparameters)
//  at CryptographicExceptionMembers.ShowProperties() in c:\inetpub\
// vssolutions\test\testbuild\consoleapplication1\class1.cs:line 109
//
//
// Properties of the exception are as follows:
// Message: CryptoAPI cryptographic service provider (CSP) for this
// implementation could not be acquired.
// Source: mscorlib
// Stack trace:
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// Int32 dwKeySize, CspParameters parameters)
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// CspParameters parameters)
//  at CryptographicExceptionMembers.ShowProperties() in c:\inetpub\
// vssolutions\test\testbuild\consoleapplication1\class1.cs:line 109
// Help link:
// Target site's name: .ctor
// Base exception message: CryptoAPI cryptographic service provider (CSP) for
// this implementation could not be acquired.
// Inner exception message:
// This sample ended successfully;  press Enter to exit.
using System;
using System.Text;
using System.Security.Cryptography;
using System.Runtime.Serialization;

class CryptographicExceptionMembers
{
    [STAThread]
    public static void Main(string[] args)
    {
        CryptographicExceptionMembers testRun = 
            new CryptographicExceptionMembers();
        testRun.TestConstructors();
        testRun.ShowProperties();
        
        Console.WriteLine("This sample ended successfully; " + 
            " press Enter to exit.");
        Console.ReadLine();
    }

    // Test each public implementation of the CryptographicException
    // constructors.
    private void TestConstructors()
    {
        EmptyConstructor();
        IntConstructor();
        StringConstructor();
        StringExceptionConstructor();
        StringStringConstructor();
    }

    private void EmptyConstructor()
    {
        // Construct a CryptographicException with no parameters.
        CryptographicException cryptographicException =
            new CryptographicException();
        Console.WriteLine("Created an empty CryptographicException.");
    }

    private void IntConstructor()
    {
        // Construct a CryptographicException using the error code for an
        // unexpected operation exception.
        int exceptionNumber = unchecked((int)0x80131431);
        CryptographicException cryptographicException =
            new CryptographicException(exceptionNumber);
        Console.WriteLine("Created a CryptographicException with the " + 
            "following error code: " + exceptionNumber);
    }

    private void StringConstructor()
    {
        // Construct a CryptographicException using a custom error message.
        string errorMessage = ("Unexpected Operation exception.");
        CryptographicException cryptographicException =
            new CryptographicException(errorMessage);
        Console.WriteLine("Created a CryptographicException with the " + 
            "following error message: " + errorMessage);
    }

    private void StringExceptionConstructor()
    {
        // Construct a CryptographicException using a custom error message
        // and an inner exception.
        string errorMessage = ("The current operation is not supported.");
        NullReferenceException nullException = new NullReferenceException();
        CryptographicException cryptographicException = 
            new CryptographicException(errorMessage, nullException);
        Console.WriteLine("Created a CryptographicException with the " +
            "following error message: " + errorMessage + 
            " and the inner exception of " + nullException.ToString());
    }

    private void StringStringConstructor()
    {
        // Create a CryptographicException using a time format and a the 
        // current date.
        string dateFormat = "{0:t}";
        string timeStamp = (DateTime.Now.ToString());
        CryptographicException cryptographicException = 
            new CryptographicException(dateFormat, timeStamp);
        Console.WriteLine("Created a CryptographicException with (" +
            dateFormat + ") as the format and (" + timeStamp + 
            ") as the message.");
    }

    // Construct an invalid DSACryptoServiceProvider to throw a
    // CryptographicException for introspection.
    private void ShowProperties()
    {
        try 
        {
            // Create a DSACryptoServiceProvider with invalid provider type
            // code to throw a CryptographicException exception.
            CspParameters cspParams = new CspParameters(44);
            DSACryptoServiceProvider DSAalg = 
                new DSACryptoServiceProvider(cspParams);
        }
        catch (CryptographicException ex)
        {
            // Retrieve the link to the help file for the exception.
            string helpLink = ex.HelpLink;
            
            // Retrieve the exception that caused the current
            // CryptographicException exception.
            System.Exception innerException = ex.InnerException;
            string innerExceptionMessage = "";
            if (innerException != null)
            {
                innerExceptionMessage = innerException.ToString();
            }

            // Retrieve the message that describes the exception.
            string message = ex.Message;

            // Retrieve the name of the application that caused the exception.
            string exceptionSource = ex.Source;

            // Retrieve the call stack at the time the exception occurred.
            string stackTrace = ex.StackTrace;

            // Retrieve the method that threw the exception.
            System.Reflection.MethodBase targetSite = ex.TargetSite;
            string siteName = targetSite.Name;

            // Retrieve the entire exception as a single string.
            string entireException = ex.ToString();

            // GetObjectData
            setSerializationInfo(ref ex);

            // Get the root exception that caused the current
            // CryptographicException exception.
            System.Exception baseException = ex.GetBaseException();
            string baseExceptionMessage = "";
            if (baseException != null)
            {
                baseExceptionMessage = baseException.Message;
            }

            Console.WriteLine("Caught an expected exception:");
            Console.WriteLine(entireException);

            Console.WriteLine("\n");
            Console.WriteLine("Properties of the exception are as follows:");
            Console.WriteLine("Message: " + message);
            Console.WriteLine("Source: " + exceptionSource);
            Console.WriteLine("Stack trace: " + stackTrace);
            Console.WriteLine("Help link: " + helpLink);
            Console.WriteLine("Target site's name: " + siteName);
            Console.WriteLine("Base exception message: " + 
                baseExceptionMessage);
            Console.WriteLine("Inner exception message: " + 
                innerExceptionMessage);

        }
    }

    private void setSerializationInfo(ref CryptographicException ex)
    {
        // Insert information about the exception into a serialized object.
        FormatterConverter formatConverter = new FormatterConverter();
        SerializationInfo serializationInfo =
            new SerializationInfo(ex.GetType(), formatConverter);
        StreamingContext streamingContext =
            new StreamingContext(StreamingContextStates.All);

        ex.GetObjectData(serializationInfo,streamingContext);
    }
}
//
// This sample produces the following output:
//
// Created an empty CryptographicException.
// Created a CryptographicException with the following error code: -2146233295
// Created a CryptographicException with the following error message: 
// Unexpected Operation exception.
// Created a CryptographicException with the following error message: The
// current operation is not supported. and the inner exception of 
// System.NullReferenceException: Object reference not set to an instance of
// an object.
// Created a CryptographicException with ({0:t}) as the format and (2/24/2004
// 2:13:15 PM) as the message.
// Caught an expected exception:
// System.Security.Cryptography.CryptographicException: CryptoAPI
// cryptographic service provider (CSP) for this implementation could not be
// acquired. 
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(Int32
// dwKeySize, CspParameters parameters)
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// CspParametersparameters)
//  at CryptographicExceptionMembers.ShowProperties() in c:\inetpub\
// vssolutions\test\testbuild\consoleapplication1\class1.cs:line 109
//
//
// Properties of the exception are as follows:
// Message: CryptoAPI cryptographic service provider (CSP) for this
// implementation could not be acquired.
// Source: mscorlib
// Stack trace:    
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// Int32 dwKeySize, CspParameters parameters) 
//  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
// CspParameters parameters)
//  at CryptographicExceptionMembers.ShowProperties() in c:\inetpub\
// vssolutions\test\testbuild\consoleapplication1\class1.cs:line 109
// Help link:
// Target site's name: .ctor
// Base exception message: CryptoAPI cryptographic service provider (CSP) for
// this implementation could not be acquired.
// Inner exception message:
// This sample ended successfully;  press Enter to exit.
Imports System.Text
Imports System.Security.Cryptography
Imports System.Runtime.Serialization

Public Class Form1
    Inherits System.Windows.Forms.Form

    ' Event handler for Run button.
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click

        tbxOutput.Cursor = Cursors.WaitCursor
        tbxOutput.Text = ""

        TestConstructors()
        ShowProperties()

        ' Reset the cursor and conclude application.
        tbxOutput.AppendText(vbCrLf + "This sample completed " + _
            "successfully; Exit to continue.")
        tbxOutput.Cursor = Cursors.Default
    End Sub

    ' Test each public implementation of the CryptographicException
    ' constructors.
    Private Sub TestConstructors()
        EmptyConstructor()
        IntConstructor()
        StringConstructor()
        StringExceptionConstructor()
        StringStringConstructor()
    End Sub

    Private Sub EmptyConstructor()
        ' Construct a CryptographicException with no parameters.
        Dim cryptographicException As New CryptographicException
        WriteLine("Created an empty CryptographicException.")
    End Sub

    Private Sub IntConstructor()
        ' Construct a CryptographicException using the error code for an
        ' unexpected operation exception.
        Dim exceptionNumber As Integer = &H80131431
        Dim cryptographicException As _
            New CryptographicException(exceptionNumber)
        WriteLine("Created a CryptographicException with the " + _
            "following error code: " + exceptionNumber.ToString())
    End Sub

    Private Sub StringConstructor()
        ' Construct a CryptographicException using a custom error message.
        Dim errorMessage As String = "Unexpected Operation exception."
        Dim cryptographicException As New CryptographicException(errorMessage)
        WriteLine("Created a CryptographicException with the " + _
            "following error message: " + errorMessage)
    End Sub

    Private Sub StringExceptionConstructor()
        ' Construct a CryptographicException using a custom error message
        ' and an inner exception.
        Dim errorMessage As String = "The current operation is not supported."
        Dim nullException As New NullReferenceException
        Dim cryptographicException As _
            New CryptographicException(errorMessage, nullException)
        Write("Created a CryptographicException with the following error ")
        Write("message: " + errorMessage + " and the inner exception of ")
        WriteLine(nullException.ToString())
    End Sub

    Private Sub StringStringConstructor()
        ' Create a CryptographicException using a time format and a the 
        ' current date.
        Dim dateFormat As String = "{0:t}"
        Dim timeStamp As String = DateTime.Now.ToString()
        Dim cryptographicException As _
            New CryptographicException(dateFormat, timeStamp)
        Write("Created a CryptographicException with (" + dateFormat)
        WriteLine(") as the format and (" + timeStamp + ") as the message.")
    End Sub

    ' Construct an invalid DSACryptoServiceProvider to throw a
    ' CryptographicException for introspection.
    Private Sub ShowProperties()
        Try
            ' Create a DSACryptoServiceProvider with invalid provider type
            ' code to throw a CryptographicException exception.
            Dim cspParams As New CspParameters(44)
            Dim DSAalg As New DSACryptoServiceProvider(cspParams)
        Catch ex As CryptographicException
            ' Retrieve the link to the help file for the exception.
            Dim helpLink As String = ex.HelpLink

            ' Retrieve the exception that caused the current
            ' CryptographicException exception.
            Dim innerException As System.Exception = ex.InnerException
            Dim innerExceptionMessage As String = ""
            If (Not innerException Is Nothing) Then
                innerExceptionMessage = innerException.ToString()
            End If

            ' Retrieve the message that describes the exception.
            Dim message As String = ex.Message

            ' Retrieve the name of the application that caused the exception.
            Dim exceptionSource As String = ex.Source

            ' Retrieve the call stack at the time the exception occurred.
            Dim stackTrace As String = ex.StackTrace

            ' Retrieve the method that threw the exception.
            Dim targetSite As System.Reflection.MethodBase
            targetSite = ex.TargetSite
            Dim siteName As String = targetSite.Name

            ' Retrieve the entire exception as a single string.
            Dim entireException As String = ex.ToString()

            ' GetObjectData
            setSerializationInfo(ex)

            ' Get the root exception that caused the current
            ' CryptographicException exception.
            Dim baseException As System.Exception = ex.GetBaseException()
            Dim baseExceptionMessage As String = ""
            If (Not baseException Is Nothing) Then
                baseExceptionMessage = baseException.Message
            End If

            WriteLine("Caught an expected exception:")
            WriteLine(entireException)

            WriteLine(vbCrLf + "Properties of the exception are as follows:")
            WriteLine("Message: " + message)
            WriteLine("Source: " + exceptionSource)
            WriteLine("Stack trace: " + stackTrace)
            WriteLine("Help link: " + helpLink)
            WriteLine("Target site's name: " + siteName)
            WriteLine("Base exception message: " + baseExceptionMessage)
            WriteLine("Inner exception message: " + innerExceptionMessage)

        End Try
    End Sub

    Private Sub setSerializationInfo(ByRef ex As CryptographicException)
        ' Insert information about the exception into a serialized object.
        Dim formatConverter As New FormatterConverter
        Dim serializationInfo As _
            New SerializationInfo(ex.GetType(), formatConverter)
        Dim streamingContext As _
            New StreamingContext(StreamingContextStates.All)

        ex.GetObjectData(serializationInfo, streamingContext)
    End Sub

    ' Write specified message to the output textbox.
    Private Sub Write(ByVal message As String)
        tbxOutput.AppendText(message)
    End Sub

    ' Write specified message with a carriage return to the output textbox.
    Private Sub WriteLine(ByVal message As String)
        tbxOutput.AppendText(message + vbCrLf)
    End Sub

    ' Event handler for Exit button.
    Private Sub Button2_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button2.Click

        Application.Exit()
    End Sub
#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Panel2 As System.Windows.Forms.Panel
    Friend WithEvents Panel1 As System.Windows.Forms.Panel
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.tbxOutput = New System.Windows.Forms.RichTextBox
        Me.Panel2.SuspendLayout()
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel2
        '
        Me.Panel2.Controls.Add(Me.Button1)
        Me.Panel2.Controls.Add(Me.Button2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
        Me.Panel2.DockPadding.All = 20
        Me.Panel2.Location = New System.Drawing.Point(0, 320)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(616, 64)
        Me.Panel2.TabIndex = 1
        '
        'Button1
        '
        Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button1.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(446, 20)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "&Run"
        '
        'Button2
        '
        Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button2.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(521, 20)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75, 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "E&xit"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.tbxOutput)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.DockPadding.All = 20
        Me.Panel1.Location = New System.Drawing.Point(0, 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(616, 320)
        Me.Panel1.TabIndex = 2
        '
        'tbxOutput
        '
        Me.tbxOutput.AccessibleDescription = _
            "Displays output from application."
        Me.tbxOutput.AccessibleName = "Output textbox."
        Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
        Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
        Me.tbxOutput.Name = "tbxOutput"
        Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
        Me.tbxOutput.TabIndex = 1
        Me.tbxOutput.Text = "Click the Run button to run the application."
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
        Me.ClientSize = New System.Drawing.Size(616, 384)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Name = "Form1"
        Me.Text = "CryptographicException"
        Me.Panel2.ResumeLayout(False)
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region
End Class
'
' This sample produces the following output:
'
' Created an empty CryptographicException.
' Created a CryptographicException with the following error code: -2146233295
' Created a CryptographicException with the following error message:
' Unexpected Operation exception.
' Created a CryptographicException with the following error message:
' The current operation is not supported. and the inner exception of 
' System.NullReferenceException: Object reference not set to an instance of an
' object.
' Created a CryptographicException with ({0:t}) as the format and (2/24/2004 
' 2:19:32 PM) as the message.
' Caught an expected exception:
' System.Security.Cryptography.CryptographicException: CryptoAPI cryptographic
' service provider (CSP) for this implementation could not be acquired.
'  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
' Int32 dwKeySize, CspParameters parameters)
'  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
' CspParameters parameters)
'  at WindowsApplication1.Form1.ShowProperties() in 
' C:\WindowsApplication1\Form1.vb:line 103
'
' Properties of the exception are as follows:
' Message: CryptoAPI cryptographic service provider (CSP) for this
' implementation could not be acquired.
' Source: mscorlib
' Stack trace:    at System.Security.Cryptography.DSACryptoServiceProvider..
' ctor(Int32 dwKeySize, CspParameters parameters)
'  at System.Security.Cryptography.DSACryptoServiceProvider..ctor(
' CspParameters parameters)
'  at WindowsApplication1.Form1.ShowProperties() in 
' C:\WindowsApplication1\Form1.vb:line 103
' Help link: 
' Target site's name: .ctor
' Base exception message: CryptoAPI cryptographic service provider (CSP) for
' this implementation could not be acquired.
' Inner exception message: 
' 
' This sample completed successfully; Exit to continue

備註

除非指定替代的錯誤碼,否則 CryptographicException 會使用 HRESULT CORSEC_E_CRYPTO。CryptographicException uses the HRESULT CORSEC_E_CRYPTO, unless an alternate error code is specified.

如需 CryptographicException實例的初始屬性值清單,請參閱函式。For a list of initial property values for an instance of CryptographicException, see the constructor.

建構函式

CryptographicException()

使用預設屬性,初始化 CryptographicException 類別的新執行個體。Initializes a new instance of the CryptographicException class with default properties.

CryptographicException(Int32)

使用指定的 CryptographicException 錯誤碼,初始化 HRESULT 類別的新執行個體。Initializes a new instance of the CryptographicException class with the specified HRESULT error code.

CryptographicException(SerializationInfo, StreamingContext)

使用序列化資料,初始化 CryptographicException 類別的新執行個體。Initializes a new instance of the CryptographicException class with serialized data.

CryptographicException(String)

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

CryptographicException(String, Exception)

使用指定的錯誤訊息以及造成此例外狀況的內部例外狀況的參考,初始化 CryptographicException 類別的新執行個體。Initializes a new instance of the CryptographicException class with a specified error message and a reference to the inner exception that is the cause of this exception.

CryptographicException(String, String)

以指定的格式使用指定的錯誤訊息,初始化 CryptographicException 類別的新執行個體。Initializes a new instance of the CryptographicException class with a specified error message in the specified format.

屬性

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.

(繼承來源 Exception)
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.

(繼承來源 Exception)
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.

(繼承來源 Exception)
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.

(繼承來源 Exception)
Message

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

(繼承來源 Exception)
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.

(繼承來源 Exception)
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.

(繼承來源 Exception)
TargetSite

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

(繼承來源 Exception)

方法

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.

(繼承來源 Object)
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.

(繼承來源 Exception)
GetHashCode()

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

(繼承來源 Object)
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.

(繼承來源 Exception)
GetType()

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

(繼承來源 Exception)
MemberwiseClone()

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

(繼承來源 Object)
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.

(繼承來源 Exception)

事件

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.

(繼承來源 Exception)

適用於

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