MethodBase.IsAbstract Eigenschaft

Definition

Ruft einen Wert ab, der angibt, ob es sich um eine abstrakte Methode handelt.Gets a value indicating whether the method is abstract.

public:
 property bool IsAbstract { bool get(); };
public bool IsAbstract { get; }
member this.IsAbstract : bool
Public ReadOnly Property IsAbstract As Boolean

Eigenschaftswert

true, wenn die Methode abstrakt ist, andernfalls false.true if the method is abstract; otherwise, false.

Implementiert

Beispiele

Im folgenden Beispiel wird bestimmt, ob die angegebene Methode abstrakt ist und das Ergebnis anzeigt.The following example determines whether specified the method is abstract and displays the result.

using namespace System;
using namespace System::Reflection;
int main()
{
   Console::WriteLine( "\nReflection.MethodBase" );
   
   // Get the types.
   Type^ MyType1 = Type::GetType( "System.Runtime.Serialization.Formatter" );
   Type^ MyType2 = Type::GetType( "System.Reflection.MethodBase" );
   
   // Get and display the methods.
   MethodBase^ Mymethodbase1 = MyType1->GetMethod( "WriteInt32", static_cast<BindingFlags>(BindingFlags::NonPublic | BindingFlags::Instance) );
   MethodBase^ Mymethodbase2 = MyType2->GetMethod( "GetCurrentMethod", static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Static) );
   Console::Write( "\nMymethodbase = {0}", Mymethodbase1 );
   if ( Mymethodbase1->IsAbstract )
      Console::Write( "\nMymethodbase is an abstract method." );
   else
      Console::Write( "\nMymethodbase is not an abstract method." );

   Console::Write( "\n\nMymethodbase = {0}", Mymethodbase2 );
   if ( Mymethodbase2->IsAbstract )
      Console::Write( "\nMymethodbase is an abstract method." );
   else
      Console::Write( "\nMymethodbase is not an abstract method." );

   return 0;
}

using System;
using System.Reflection;
// using System.Windows.Forms;

class methodbase
{
    public static int Main(string[] args)
    {      
        Console.WriteLine ("\nReflection.MethodBase");
        
        // Get the types.
        Type MyType1 = Type.GetType("System.Runtime.Serialization.Formatter");       
        Type MyType2 = Type.GetType("System.Reflection.MethodBase");
 
        // Get and display the methods.
        MethodBase Mymethodbase1 = 
            MyType1.GetMethod("WriteInt32", BindingFlags.NonPublic|BindingFlags.Instance);

        MethodBase Mymethodbase2 = 
            MyType2.GetMethod("GetCurrentMethod", BindingFlags.Public|BindingFlags.Static);
 
        Console.Write("\nMymethodbase = " + Mymethodbase1.ToString());
        if (Mymethodbase1.IsAbstract)
            Console.Write ("\nMymethodbase is an abstract method.");
        else
            Console.Write ("\nMymethodbase is not an abstract method.");
 
        Console.Write("\n\nMymethodbase = " + Mymethodbase2.ToString());
        if (Mymethodbase2.IsAbstract)
            Console.Write ("\nMymethodbase is an abstract method.");
        else
            Console.Write ("\nMymethodbase is not an abstract method.");
       
        return 0;
    }
}
Imports System.Reflection

Class methodbase1

    Public Shared Function Main() As Integer
        Console.WriteLine("Reflection.MethodBase")
        Console.WriteLine()
        ' Get the types.
        Dim MyType1 As Type = _
           Type.GetType("System.Runtime.Serialization.Formatter")
        Dim MyType2 As Type = _
           Type.GetType("System.Reflection.MethodBase")

        ' Get and display the methods
        Dim Mymethodbase1 As MethodBase = _
           MyType1.GetMethod("WriteInt32", BindingFlags.NonPublic Or BindingFlags.Instance)
        Dim Mymethodbase2 As MethodBase = _
           MyType2.GetMethod("GetCurrentMethod", BindingFlags.Public Or BindingFlags.Static)

        Console.WriteLine("Mymethodbase = {0}", Mymethodbase1.ToString())
        If Mymethodbase1.IsAbstract Then
            Console.WriteLine(ControlChars.CrLf & "Mymethodbase is an abstract method.")
        Else
            Console.WriteLine(ControlChars.CrLf & "Mymethodbase is not an abstract method.")
        End If
        Console.Write("Mymethodbase = {0}", Mymethodbase2.ToString())
        If Mymethodbase2.IsAbstract Then
            Console.WriteLine(ControlChars.CrLf & "Mymethodbase is an abstract method.")
        Else
            Console.WriteLine(ControlChars.CrLf & "Mymethodbase is not an abstract method.")
        End If
        Return 0
    End Function

End Class

Hinweise

Ein abstrakter Member ist für eine Basisklasse deklariert, und es wurde keine Implementierung bereitgestellt.An abstract member is declared on a base class and has no implementation supplied.

Um die MethodBasezu erhalten, erhalten Sie zuerst den-Typ.To get the MethodBase, first get the type. Get the-Methode aus dem-Typ.From the type, get the method. Holen Sie den MethodBaseaus der-Methode ab.From the method, get the MethodBase. Wenn die MethodBase oder der Konstruktor nicht öffentlich ist, wird Sie geschützt, und es kann nicht darauf zugegriffen werden.If the MethodBase or constructor is other than public, it is protected and cannot be readily accessed. Um auf eine nicht öffentliche Methode zuzugreifen, legen Sie die BindingFlags Maske auf NonPublic in GetMethodfest.To access a non-public method, set the BindingFlags mask to NonPublic in GetMethod.

Gilt für:

Siehe auch