MissingMemberException.Message Propiedad

Definición

Espacio de nombres:

System

Ensamblado:

System.Runtime.dll

Source:

MissingMemberException.cs

Obtiene la cadena de texto que muestra el nombre de la clase, el nombre del miembro y la firma del miembro que falta.

public:
 virtual property System::String ^ Message { System::String ^ get(); };

public override string Message { get; }

member this.Message : string

Public Overrides ReadOnly Property Message As String

Valor de propiedad

String

Cadena con el mensaje de error.

Ejemplos

En el ejemplo siguiente se muestra la Message propiedad . Este ejemplo de código es parte de un ejemplo mayor proporcionado para la clase MissingMemberException.

try
{
    // Attempt to access a static AnotherField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    App::typeid->InvokeMember("AnotherField", BindingFlags::Static |
        BindingFlags::GetField, nullptr, nullptr, nullptr);
}
catch (MissingMemberException^ ex)
{
    // Notice that this code is catching MissingMemberException which is the
    // base class of MissingMethodException and MissingFieldException.
    // Show the user that the AnotherField field cannot be accessed.
    Console::WriteLine("Unable to access the AnotherField field: {0}",
        ex->Message);
}

try
{
    // Attempt to access a static AnotherField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    typeof(App).InvokeMember("AnotherField", BindingFlags.Static |
        BindingFlags.GetField, null, null, null);
}
catch (MissingMemberException e)
{
 // Notice that this code is catching MissingMemberException which is the
 // base class of MissingMethodException and MissingFieldException.
 // Show the user that the AnotherField field cannot be accessed.
 Console.WriteLine("Unable to access the AnotherField field: {0}", e.Message);
}

try
    // Attempt to access a static AnotherField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    typeof<App>.InvokeMember("AnotherField", BindingFlags.Static ||| BindingFlags.GetField, null, null, null)
    |> ignore
with :? MissingMemberException as e ->
    // Notice that this code is catching MissingMemberException which is the
    // base class of MissingMethodException and MissingFieldException.
    // Show the user that the AnotherField field cannot be accessed.
    printfn $"Unable to access the AnotherField field: {e.Message}"

    Try
        ' Attempt to access a static AnotherField field defined in the App class.
        ' However, because the App class does not define this field, 
        ' a MissingFieldException is thrown.
        GetType(App).InvokeMember("AnotherField", BindingFlags.Static Or BindingFlags.GetField, _
                                   Nothing, Nothing, Nothing)
    Catch e As MissingMemberException
        ' Notice that this code is catching MissingMemberException which is the  
        ' base class of MissingMethodException and MissingFieldException.
        ' Show the user that the AnotherField field cannot be accessed.
        Console.WriteLine("Unable to access the AnotherField field: {0}", e.Message)
    End Try
End Sub

Comentarios

Si no se especifica el nombre de clase cuando se construye el objeto, se devuelve la cadena de texto predeterminada heredada de la clase base.

Esta propiedad invalida Message. El mensaje de error debe localizarse.

Esta propiedad es de sólo lectura.

Consulte también

• Exception
• MissingFieldException
• MissingMethodException
• Controlar y generar excepciones