Type.IsAbstract Property
.NET Framework 3.0
Gets a value indicating whether the Type is abstract and must be overridden.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly: mscorlib (in mscorlib.dll)
The following example returns true if the specified object is abstract; otherwise, it returns false.
using namespace System; using namespace System::Reflection; public ref class AbstractClass abstract { }; public ref class NonAbstractClass { }; int main() { // Check whether the return type of MyAbstractClass is abstract or not. Console::WriteLine("\nChecking whether the type is abstract.\n"); if ((AbstractClass::typeid->IsAbstract)) { Console::WriteLine("The AbstractClass is an abstract class."); } else { Console::WriteLine("The AbstractClass is not an abstract class."); } // Check whether the return type of MyClass is abstract or not. if ((NonAbstractClass::typeid->IsAbstract)) { Console::WriteLine("The NonAbstractClass is an abstract class."); } else { Console::WriteLine("The NonAbstractClass is not an abstract class."); } };
import System.*;
import System.Reflection.*;
abstract public class MyAbstractClass
{
} //MyAbstractClass
public class MyClass
{
} //MyClass
public class Type_IsAbstract
{
public static void main(String[] args)
{
try {
// Check whether the return type of MyAbstractClass is
// abstract or not.
Console.WriteLine("\nChecking whether the type is abstract.\n");
Console.WriteLine("MyAbstractClass is {0}", (MyAbstractClass.class.
ToType().get_IsAbstract()) ? "an abstract class." :
"not an abstract class.");
// Check whether the return type of MyClass is abstract or not.
Console.WriteLine("MyClass is {0}", (MyClass.class.ToType().
get_IsAbstract()) ? "an abstract class." :
"not an abstract class.");
}
catch (System.Exception e) {
Console.WriteLine("Exception: {0} \n", e.get_Message());
}
} //main
} //Type_IsAbstract
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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