Type.IsInterface 属性

定义

命名空间:
System
程序集:
mscorlib.dll, netstandard.dll, System.Runtime.dll

获取一个值，通过该值指示 Type 是否是一个接口；即，不是类或值类型。Gets a value indicating whether the Type is an interface; that is, not a class or a value type.

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

属性值

Boolean

如果 true 是接口，则为 Type；否则为 false。true if the Type is an interface; otherwise, false.

实现

IsInterface

示例

下面的示例创建一个接口，检查接口类型，并指示类是否具有 IsInterface 属性集。The following example creates an interface, checks for the interface type, and indicates whether a class has the IsInterface property set.

using namespace System;

// Declare an interface.
interface class myIFace{};
public ref class MyIsInterface{};

void main()
{
   try
   {
      // Get the IsInterface attribute for myIFace.
      bool myBool1 = myIFace::typeid->IsInterface;
      
      //Display the IsInterface attribute for myIFace.
      Console::WriteLine( "Is the specified type an interface? {0}.", myBool1 );
      
      // Get the attribute IsInterface for MyIsInterface.
      bool myBool2 = MyIsInterface::typeid->IsInterface;
      
      //Display the IsInterface attribute for MyIsInterface.
      Console::WriteLine( "Is the specified type an interface? {0}.", myBool2 );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "\nAn exception occurred: {0}.", e->Message );
   }
}

using System;
// Declare an interface.
interface myIFace
{
}
class MyIsInterface 
{
    public static void Main(string []args)
    {
        try
        {
            // Get the IsInterface attribute for myIFace.
            bool myBool1 = typeof(myIFace).IsInterface;    
            //Display the IsInterface attribute for myIFace.
            Console.WriteLine("Is the specified type an interface? {0}.", myBool1);
            // Get the attribute IsInterface for MyIsInterface.
            bool myBool2 = typeof(MyIsInterface).IsInterface;    
            //Display the IsInterface attribute for MyIsInterface.
            Console.WriteLine("Is the specified type an interface? {0}.", myBool2);         
        }
        catch(Exception e)
        {
            Console.WriteLine("\nAn exception occurred: {0}.", e.Message);
        }
    }
}

' Declare an interface.
Interface IInterface
End Interface

Class Example : Implements IInterface
   Public Shared Sub Main()
      ' Determine whether IInterface is an interface.
       Dim isInterface1 As Boolean = GetType(IInterface).IsInterface
       Console.WriteLine("Is IInterface an interface? {0}", isInterface1)

       ' Determine whether Example is an interface.
       Dim isInterface2 As Boolean = GetType(Example).IsInterface
       Console.WriteLine("Is Example an interface? {0}", isInterface2)
   End Sub 
End Class 
' The example displays the following output:
'       Is IInterface an interface? True
'       Is Example an interface? False

注解

ClassSemanticsMask 将类型声明和类、接口或值类型区分开来。The ClassSemanticsMask distinguishes a type declaration as class, interface or value type.

如果当前 Type 表示泛型类型或泛型方法的定义中的类型参数，则此属性始终返回 false。If the current Type represents a type parameter in the definition of a generic type or generic method, this property always returns false.

此属性是只读的。This property is read-only.

适用于

另请参阅