COMException Class

Definition

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

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
Inheritance
COMException
Inheritance
Derived
Attributes

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, 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(String)

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

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

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1
UWP 10.0

See also