Class NullReferenceException
The exception that is thrown when there is an attempt to dereference a null object reference.
Inherited Members
Namespace: System
Assembly: mscorlib.dll
Syntax
public class NullReferenceException : SystemExceptionConstructors
| Improve this Doc View SourceNullReferenceException()
Initializes a new instance of the NullReferenceException class, setting the Message property of the new instance to a system-supplied message that describes the error, such as "The value 'null' was found where an instance of an object was required." This message takes into account the current system culture.
Declaration
public NullReferenceException()NullReferenceException(String)
Initializes a new instance of the NullReferenceException class with a specified error message.
Declaration
public NullReferenceException(string message)Parameters
| Type | Name | Description |
|---|---|---|
| String | message | A String that describes the error. The content of message is intended to be understood by humans. The caller of this constructor is required to ensure that this string has been localized for the current system culture. |
NullReferenceException(String, Exception)
Initializes a new instance of the NullReferenceException class with a specified error message and a reference to the inner exception that is the cause of this exception.
Declaration
public NullReferenceException(string message, Exception innerException)Parameters
| Type | Name | Description |
|---|---|---|
| String | message | The error message that explains the reason for the exception. |
| Exception | innerException | The exception that is the cause of the current exception. If the innerException parameter is not null, the current exception is raised in a catch block that handles the inner exception. |