MissingFieldException.Message Propiedad

Definición

Espacio de nombres:

System

Ensamblado:

System.Runtime.dll

Source:

MissingFieldException.cs

Obtiene la cadena de texto que muestra la firma del campo que no se encuentra, el nombre de la clase y el nombre del campo. Esta propiedad es de sólo lectura.

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 MissingFieldException.

try
{
    // Attempt to access a static AField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    App::typeid->InvokeMember("AField", BindingFlags::Static |
        BindingFlags::SetField, nullptr, nullptr, gcnew array<Object^>{5});
}
catch (MissingFieldException^ ex)
{
    // Show the user that the AField field cannot be accessed.
    Console::WriteLine("Unable to access the AField field: {0}",
        ex->Message);
}

try
{
    // Attempt to access a static AField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    typeof(App).InvokeMember("AField", BindingFlags.Static | BindingFlags.SetField,
        null, null, new Object[] { 5 });
}
catch (MissingFieldException e)
{
 // Show the user that the AField field cannot be accessed.
 Console.WriteLine("Unable to access the AField field: {0}", e.Message);
}

try
    // Attempt to access a static AField field defined in the App class.
    // However, because the App class does not define this field,
    // a MissingFieldException is thrown.
    typeof<App>.InvokeMember("AField", BindingFlags.Static ||| BindingFlags.SetField, null, null, [| box 5 |])
    |> ignore
with :? MissingFieldException as e ->
    // Show the user that the AField field cannot be accessed.
    printfn $"Unable to access the AField field: {e.Message}"

Try
    ' Attempt to access a static AField field defined in the App class.
    ' However, because the App class does not define this field, 
    ' a MissingFieldException is thrown.
    GetType(App).InvokeMember("AField", BindingFlags.Static Or BindingFlags.SetField, _
                               Nothing, Nothing, New [Object]() {5})
Catch e As MissingFieldException
    ' Show the user that the AField field cannot be accessed.
    Console.WriteLine("Unable to access the AField field: {0}", e.Message)
End Try

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.