Type.GetElementType Type.GetElementType Type.GetElementType Type.GetElementType Method

定義

在衍生類別中覆寫時,傳回由目前陣列、指標或參考類型所包含或參考物件的 TypeWhen overridden in a derived class, returns the Type of the object encompassed or referred to by the current array, pointer or reference type.

public:
 abstract Type ^ GetElementType();
public abstract Type GetElementType ();
abstract member GetElementType : unit -> Type
Public MustOverride Function GetElementType () As Type

傳回

目前的陣列、指標或參考類型所內含或參考之物件的 Type,如果目前的 null 不是陣列或指標、未以傳址方式傳遞,或表示泛型類型或泛型類型或泛型方法定義中之類型參數,則為 TypeThe Type of the object encompassed or referred to by the current array, pointer, or reference type, or null if the current Type is not an array or a pointer, or is not passed by reference, or represents a generic type or a type parameter in the definition of a generic type or generic method.

實作

範例

下列範例示範如何使用GetElementType方法。The following example demonstrates using the GetElementType method.

using namespace System;
public ref class TestGetElementType{};

int main()
{
   array<Int32>^array = {1,2,3};
   Type^ t = array->GetType();
   Type^ t2 = t->GetElementType();
   Console::WriteLine( "The element type of {0} is {1}.", array, t2 );
   TestGetElementType^ newMe = gcnew TestGetElementType;
   t = newMe->GetType();
   t2 = t->GetElementType();
   Console::WriteLine( "The element type of {0} is {1}.", newMe, t2 == nullptr ? "null" : t2->ToString() );
}

/* This code produces the following output:

The element type of System.Int32[] is System.Int32.
The element type of TestGetElementType is null.
 */
using System;
class TestGetElementType 
{
    public static void Main() 
    {
        int[] array = {1,2,3};
        Type t = array.GetType();
        Type t2 = t.GetElementType();
        Console.WriteLine("The element type of {0} is {1}.",array, t2.ToString());
        TestGetElementType newMe = new TestGetElementType();
        t = newMe.GetType();
        t2 = t.GetElementType();
        Console.WriteLine("The element type of {0} is {1}.", newMe, t2==null? "null" : t2.ToString());
    }
}

/* This code produces the following output:

The element type of System.Int32[] is System.Int32.
The element type of TestGetElementType is null.
 */
Class TestGetElementType

    Public Shared Sub Main()
        Dim array As Integer() = {1, 2, 3}
        Dim t As Type = array.GetType()
        Dim t2 As Type = t.GetElementType()
        Console.WriteLine("The element type of {0} is {1}.", array, t2.ToString())
        Dim newMe As New TestGetElementType()
        t = newMe.GetType()
        t2 = t.GetElementType()
        If t2 Is Nothing Then
            Console.WriteLine("The element type of {0} is {1}.", newMe, "null")
        Else
            Console.WriteLine("The element type of {0} is {1}.", newMe, t2.ToString())
        End If
    End Sub
End Class 'TestGetElementType

' This code produces the following output:
'
'The element type of System.Int32[] is System.Int32.
'The element type of TestGetElementType is null.

備註

這個方法nullArray針對類別傳回。This method returns null for the Array class.

適用於

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