IsAbstract Property

MethodBase.IsAbstract Property


Gets a value indicating whether the method is abstract.

Namespace:   System.Reflection
Assembly:  mscorlib (in mscorlib.dll)

public bool IsAbstract { get; }

Property Value

Type: System.Boolean

true if the method is abstract; otherwise, false.

An abstract member is declared on a base class and has no implementation supplied.

To get the MethodBase, first get the type. From the type, get the method. From the method, get the MethodBase. If the MethodBase or constructor is other than public, it is protected and cannot be readily accessed. To access a non-public method, set the BindingFlags mask to NonPublic in GetMethod.

The following example determines whether specified the method is abstract and displays the result.

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.");
            Console.Write ("\nMymethodbase is not an abstract method.");

        Console.Write("\n\nMymethodbase = " + Mymethodbase2.ToString());
        if (Mymethodbase2.IsAbstract)
            Console.Write ("\nMymethodbase is an abstract method.");
            Console.Write ("\nMymethodbase is not an abstract method.");

        return 0;

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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