NotImplementedException Class (System) (original) (raw)

Definition

Important

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The exception that is thrown when a requested method or operation is not implemented.

public ref class NotImplementedException : Exception
public ref class NotImplementedException : SystemException
public class NotImplementedException : Exception
public class NotImplementedException : SystemException
[System.Serializable]
public class NotImplementedException : SystemException
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class NotImplementedException : SystemException
type NotImplementedException = class
    inherit Exception
type NotImplementedException = class
    inherit SystemException
[<System.Serializable>]
type NotImplementedException = class
    inherit SystemException
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type NotImplementedException = class
    inherit SystemException
Public Class NotImplementedException
Inherits Exception
Public Class NotImplementedException
Inherits SystemException

Inheritance

Inheritance

Attributes

Examples

The following example throws this exception for a method that has not been developed.

static void Main(string[] args)
{
    try
    {
        FutureFeature();
    }
    catch (NotImplementedException notImp)
    {
        Console.WriteLine(notImp.Message);
    }
}

static void FutureFeature()
{
    // Not developed yet.
    throw new NotImplementedException();
}

open System

let futureFeature () =
    // Not developed yet.
    raise (NotImplementedException())

[<EntryPoint>]
let main _ =
    try
        futureFeature ()
    with :? NotImplementedException as notImp ->
        printfn $"{notImp.Message}"
    0

Sub Main()
    Try
        FutureFeature()
    Catch NotImp As NotImplementedException
        Console.WriteLine(NotImp.Message)
    End Try


End Sub

Sub FutureFeature()
    ' not developed yet.
    Throw New NotImplementedException()
End Sub

Remarks

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

Applies to

See also