KeyNotFoundException Class
Definition
Important
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The exception that is thrown when the key specified for accessing an element in a collection does not match any key in the collection.
public ref class KeyNotFoundException : Exception
public ref class KeyNotFoundException : SystemException
public class KeyNotFoundException : Exception
public class KeyNotFoundException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class KeyNotFoundException : SystemException
type KeyNotFoundException = class
inherit Exception
type KeyNotFoundException = class
inherit SystemException
type KeyNotFoundException = class
inherit SystemException
interface ISerializable
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type KeyNotFoundException = class
inherit SystemException
interface ISerializable
Public Class KeyNotFoundException
Inherits Exception
Public Class KeyNotFoundException
Inherits SystemException
- Inheritance
- Inheritance
- Attributes
- Implements
Remarks
A KeyNotFoundException is thrown when an operation attempts to retrieve an element from a collection using a key that does not exist in that collection.
KeyNotFoundException uses the HRESULT COR_E_KEYNOTFOUND, which has the value 0x80131577.
For a list of initial property values for an instance of the KeyNotFoundException class, see the KeyNotFoundException constructors.
Constructors
KeyNotFoundException() |
Initializes a new instance of the KeyNotFoundException class using default property values. |
KeyNotFoundException(SerializationInfo, StreamingContext) |
Obsolete.
Initializes a new instance of the KeyNotFoundException class with serialized data. |
KeyNotFoundException(String) |
Initializes a new instance of the KeyNotFoundException class with the specified error message. |
KeyNotFoundException(String, Exception) |
Initializes a new instance of the KeyNotFoundException class with the specified error message and a reference to the inner exception that is the cause of this exception. |
Properties
Data |
Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception) |
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() |
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) |