Type.IsInterface 属性
定义
重要
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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。
public:
property bool IsInterface { bool get(); };public bool IsInterface { get; }member this.IsInterface : boolPublic ReadOnly Property IsInterface As Boolean属性值
如果 true 是接口，则为 Type；否则为 false。
实现
示例
以下示例创建接口，检查接口类型，并指示类是否设置了 IsInterface 属性。
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 );
}
}
/* The example produces the following output:
Is the specified type an interface? True.
Is the specified type an interface? False.
*/
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);
}
}
}
/* The example produces the following output:
Is the specified type an interface? True.
Is the specified type an interface? False.
*/
' Declare an interface.
Interface myIFace
End Interface
Class MyIsInterface
Public Shared Sub Main()
' Get the IsInterface attribute for myIFace.
Dim myBool1 As Boolean = GetType(myIFace).IsInterface
Console.WriteLine("Is the specified type an interface? {0}.", myBool1)
' Determine whether Example is an interface.
Dim myBool2 As Boolean = GetType(MyIsInterface).IsInterface
Console.WriteLine("Is the specified type an interface? {0}.", myBool2)
Console.ReadLine()
End Sub
End Class
' The example displays the following output:
' Is the specified type an interface? True.
' Is the specified type an interface? False.
注解
ClassSemanticsMask将类型声明区分为类、接口或值类型。
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 。
此属性为只读。