COMException Class

Reference

Definition

Namespace:: System.Runtime.InteropServices

Assembly:: System.Runtime.InteropServices.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: COMException.cs

Source:: COMException.cs

Source:: COMException.cs

Important

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The exception that is thrown when an unrecognized HRESULT is returned from a COM method call.

public ref class COMException : Exception

public ref class COMException : System::Runtime::InteropServices::ExternalException

public class COMException : Exception

public class COMException : System.Runtime.InteropServices.ExternalException

[System.Serializable]
public class COMException : System.Runtime.InteropServices.ExternalException

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class COMException : System.Runtime.InteropServices.ExternalException

type COMException = class
    inherit Exception

type COMException = class
    inherit ExternalException

[<System.Serializable>]
type COMException = class
    inherit ExternalException

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type COMException = class
    inherit ExternalException

Public Class COMException
Inherits Exception

Public Class COMException
Inherits ExternalException

Inheritance: Object

Exception
COMException

Inheritance: Object

Exception

SystemException

ExternalException
COMException

Derived: System.DirectoryServices.DirectoryServicesCOMException

Attributes: SerializableAttribute ComVisibleAttribute

Remarks

For more information about this API, see Supplemental API remarks for COMException.

Constructors

COMException()	Initializes a new instance of the COMException class with default values.
COMException(SerializationInfo, StreamingContext)	Obsolete. Initializes a new instance of the COMException class from serialization data.
COMException(String)	Initializes a new instance of the COMException class with a specified message.
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.

Properties

Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception)
ErrorCode	Gets the `HRESULT` of the error. (Inherited from ExternalException)
HelpLink	Gets or sets a link to the help file associated with this exception. (Inherited from Exception)
HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception)
InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception)
Message	Gets a message that describes the current exception. (Inherited from Exception)
Source	Gets or sets the name of the application or the object that causes the error. (Inherited from Exception)
StackTrace	Gets a string representation of the immediate frames on the call stack. (Inherited from Exception)
TargetSite	Gets the method that throws the current exception. (Inherited from Exception)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetBaseException()	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext)	Obsolete. When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception)
GetType()	Gets the runtime type of the current instance. (Inherited from Exception)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Converts the contents of the exception to a string.
ToString()	Creates and returns a string representation of the current exception. (Inherited from Exception)

Events

SerializeObjectState

Obsolete.

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

Applies to

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