COMException Constructors

Definition

Namespace:

System.Runtime.InteropServices

Assembly:

System.Runtime.InteropServices.dll

Initializes a new instance of the COMException class.

Overloads

COMException()	Initializes a new instance of the COMException class with default values.
COMException(String)	Initializes a new instance of the COMException class with a specified message.
COMException(SerializationInfo, StreamingContext)	Obsolete. Initializes a new instance of the COMException class from serialization data.
COMException(String, Exception)	Initializes a new instance of the COMException class with a specified error message and a reference to the inner exception that is the cause of this exception.
COMException(String, Int32)	Initializes a new instance of the COMException class with a specified message and error code.

COMException()

Source:

COMException.cs

Initializes a new instance of the COMException class with default values.

public:
 COMException();

public COMException ();

Public Sub New ()

Remarks

COMException inherits from ExternalException. The following table shows how this constructor sets the properties of the Exception object.

Property	Value
InnerException	null.
Message	A localized error message string.

COMException(String)

Source:

COMException.cs

Initializes a new instance of the COMException class with a specified message.

public:
 COMException(System::String ^ message);

public COMException (string? message);

new System.Runtime.InteropServices.COMException : string -> System.Runtime.InteropServices.COMException

Public Sub New (message As String)

Parameters

message

String

The message that indicates the reason for the exception.

Remarks

COMException inherits from ExternalException. The following table shows how this constructor sets the properties of the Exception object.

Property	Value
InnerException	null
Message	message

COMException(SerializationInfo, StreamingContext)

Source:

COMException.cs

Caution

This API supports obsolete formatter-based serialization. It should not be called or extended by application code.

Initializes a new instance of the COMException class from serialization data.

protected:
 COMException(System::Runtime::Serialization::SerializationInfo ^ info, System::Runtime::Serialization::StreamingContext context);

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected COMException (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

[<System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Runtime.InteropServices.COMException : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> System.Runtime.InteropServices.COMException

Protected Sub New (info As SerializationInfo, context As StreamingContext)

Parameters

info

SerializationInfo

The SerializationInfo object that holds the serialized object data.

context

StreamingContext

The StreamingContext object that supplies the contextual information about the source or destination.

Attributes

ObsoleteAttribute

Exceptions

ArgumentNullException

info is null.

Remarks

This constructor is called during deserialization to reconstitute the exception object transmitted over a stream. For more information, see XML and SOAP Serialization.

COMException inherits from ExternalException.

See also

• ExternalException

COMException(String, Exception)

Source:

COMException.cs

Initializes a new instance of the COMException class with a specified error message and a reference to the inner exception that is the cause of this exception.

public:
 COMException(System::String ^ message, Exception ^ inner);

public COMException (string? message, Exception? inner);

new System.Runtime.InteropServices.COMException : string * Exception -> System.Runtime.InteropServices.COMException

Public Sub New (message As String, inner As Exception)

Parameters

message

String

The error message that explains the reason for the exception.

inner

Exception

The exception that is the cause of the current exception. If the inner parameter is not null, the current exception is raised in a catch block that handles the inner exception.

Remarks

An exception that is thrown as a direct result of a previous exception should include a reference to the previous exception in the InnerException property. The InnerException property returns the same value that is passed into the constructor, or null if the InnerException property does not supply the inner exception value to the constructor.

The following table shows how this constructor sets the properties of the Exception object.

Property	Value
InnerException	The inner exception reference.
Message	The error message string.

See also

• Exception
• Handling and throwing exceptions in .NET

COMException(String, Int32)

Source:

COMException.cs

Initializes a new instance of the COMException class with a specified message and error code.

public:
 COMException(System::String ^ message, int errorCode);

public COMException (string? message, int errorCode);

new System.Runtime.InteropServices.COMException : string * int -> System.Runtime.InteropServices.COMException

Public Sub New (message As String, errorCode As Integer)

Parameters

message

String

The message that indicates the reason the exception occurred.

errorCode

Int32

The error code (HRESULT) value associated with this exception.

Remarks

This COMException constructor sets the base message with the error code.

COMException inherits from ExternalException. The following table shows how this constructor sets the properties of the Exception object.

Property	Value
InnerException	null
Message	message