Type.GetTypeCode(Type) 方法

定义

获取指定 Type 的基础类型代码。Gets the underlying type code of the specified Type.

public:
 static TypeCode GetTypeCode(Type ^ type);
public static TypeCode GetTypeCode (Type type);
static member GetTypeCode : Type -> TypeCode

参数

type
Type

要获取其基础代码的类型。The type whose underlying type code to get.

返回

如果 Emptytype,则为基础类型代码或 nullThe code of the underlying type, or Empty if type is null.

示例

下面的代码示例演示如何TypeCode使用枚举。The following code example demonstrates how the TypeCode enumeration can be used. WriteObjectInfo方法内的决策块中TypeCode ,将检查Object参数的,并将相应的消息写入控制台。In a decision block inside the WriteObjectInfo method, the TypeCode of an Object parameter is examined, and an appropriate message is written to the console.

void WriteObjectInfo( Object^ testObject )
{
   TypeCode typeCode = Type::GetTypeCode( testObject->GetType() );
   switch ( typeCode )
   {
      case TypeCode::Boolean:
         Console::WriteLine( "Boolean: {0}", testObject );
         break;

      case TypeCode::Double:
         Console::WriteLine( "Double: {0}", testObject );
         break;

      default:
         Console::WriteLine( "{0}: {1}", typeCode, testObject );
         break;
   }
}
static void WriteObjectInfo(object testObject)
{
    TypeCode    typeCode = Type.GetTypeCode( testObject.GetType() );

    switch( typeCode )
    {
        case TypeCode.Boolean:
            Console.WriteLine("Boolean: {0}", testObject);
            break;

        case TypeCode.Double:
            Console.WriteLine("Double: {0}", testObject);
            break;

        default:
            Console.WriteLine("{0}: {1}", typeCode.ToString(), testObject);
            break;
    }
}
Sub WriteObjectInfo(ByVal testObject As Object)
    Dim typeCode As TypeCode = Type.GetTypeCode(testObject.GetType())

    Select Case typeCode
        Case typeCode.Boolean
            Console.WriteLine("Boolean: {0}", testObject)

        Case typeCode.Double
            Console.WriteLine("Double: {0}", testObject)

        Case Else
            Console.WriteLine("{0}: {1}", typeCode.ToString(), testObject)
    End Select
End Sub

注解

当从Type继承时,可以通过GetTypeCodeImpl重写方法来更改此方法的行为。When you inherit from Type, you can change the behavior of this method by overriding the GetTypeCodeImpl method.

适用于

另请参阅