Type.IsPrimitiveImpl Método

Definição

Espaço de Nomes:
System
Assemblagem:
mscorlib.dll
Assemblagem:
netstandard.dll

Quando sobrescrito numa classe derivada, implementa a IsPrimitive propriedade e determina se o Type é um dos tipos primitivos.

protected:
 abstract bool IsPrimitiveImpl();
protected abstract bool IsPrimitiveImpl();
abstract member IsPrimitiveImpl : unit -> bool
Protected MustOverride Function IsPrimitiveImpl () As Boolean

Devoluções

Boolean

true se o Type for um dos tipos primitivos; caso contrário, false.

Exemplos

O exemplo seguinte determina se o tipo dado é um tipo primitivo e apresenta o resultado.

using System;
using System.Reflection;
public class MyTypeDelegatorClass : TypeDelegator
{
    public string myElementType = null;
    private Type myType = null ;
    public MyTypeDelegatorClass(Type myType) : base(myType)
    {
        this.myType = myType;
    }
    // Override the IsPrimitiveImpl.
    protected override bool IsPrimitiveImpl()
    {
        // Determine whether the type is a primitive type.
        if(myType.IsPrimitive)
        {
            myElementType = "primitive";
            return true;
        }
        return false;
    }
}
public class MyTypeDemoClass
{
    public static void Main()
    {
        try
        {
            Console.WriteLine ("Determine whether int is a primitive type.");
            MyTypeDelegatorClass myType;
            myType = new MyTypeDelegatorClass(typeof(int));
            // Determine whether int is a primitive type.
            if( myType.IsPrimitive)
            {
                Console.WriteLine(typeof(int) + " is a primitive type.");
            }
            else
            {
                Console.WriteLine(typeof(int) + " is not a primitive type.");
            }
            Console.WriteLine ("\nDetermine whether string is a primitive type.");
            myType = new MyTypeDelegatorClass(typeof(string));
            // Determine if string is a primitive type.
            if( myType.IsPrimitive)
            {
                Console.WriteLine(typeof(string) + " is a primitive type.");
            }
            else
            {
                Console.WriteLine(typeof(string) + " is not a primitive type.");
            }
        }
        catch( Exception e )
        {
            Console.WriteLine("Exception: {0}", e.Message);
        }
    }
}

open System.Reflection

type MyTypeDelegatorClass(myType) =
    inherit TypeDelegator(myType)
    [<DefaultValue>]
    val mutable public myElementType : string
    // Override the IsPrimitiveImpl.
    override this.IsPrimitiveImpl() =
        // Determine whether the type is a primitive type.
        if myType.IsPrimitive then
            this.myElementType <- "primitive"
            true
        else
            false

try
    printfn "Determine whether int is a primitive type."
    let myType = MyTypeDelegatorClass typeof<int>
    // Determine whether int is a primitive type.
    if myType.IsPrimitive then
        printfn $"{typeof<int>} is a primitive type."
    else
        printfn $"{typeof<int>} is not a primitive type."
    printfn "\nDetermine whether string is a primitive type."
    let myType = MyTypeDelegatorClass typeof<string>
    // Determine if string is a primitive type.
    if myType.IsPrimitive then
        printfn $"{typeof<string>} is a primitive type."
    else
        printfn $"{typeof<string>} is not a primitive type."
with e ->
    printfn $"Exception: {e.Message}"

Imports System.Reflection

Public Class MyTypeDelegatorClass
    Inherits TypeDelegator
    Public myElementType As String = Nothing
    Private myType As Type = Nothing
    Public Sub New(ByVal myType As Type)
        MyBase.New(myType)
        Me.myType = myType
    End Sub
    ' Override the IsPrimitiveImpl method.
    Protected Overrides Function IsPrimitiveImpl() As Boolean
        ' Determine whether the type is a primitive type.
        If myType.IsPrimitive Then
            myElementType = "primitive"
            Return True
        End If
        Return False
    End Function 'IsPrimitiveImpl
End Class
Public Class MyTypeDemoClass
    Public Shared Sub Main()
        Try
            Console.WriteLine("Determine whether int is a primitive type.")
            Dim myType As MyTypeDelegatorClass
            myType = New MyTypeDelegatorClass(GetType(Integer))
            ' Determine whether int is a primitive type.
            If myType.IsPrimitive Then
                Console.WriteLine(GetType(Integer).ToString() + " is a primitive type.")
            Else
                Console.WriteLine(GetType(Integer).ToString() + " is not a primitive type.")
            End If
            Console.WriteLine(ControlChars.NewLine + "Determine whether string is a primitive type.")
            myType = New MyTypeDelegatorClass(GetType(String))
            ' Determine whether string is a primitive type.
            If myType.IsPrimitive Then
                Console.WriteLine(GetType(String).ToString() + " is a primitive type.")
            Else
                Console.WriteLine(GetType(String).ToString() + " is not a primitive type.")
            End If
        Catch e As Exception
            Console.WriteLine("Exception: {0}", e.Message.ToString())
        End Try
    End Sub
End Class

Observações

Os tipos primitivos são Boolean, Byte, SByte, UInt16Int16, Int32, UInt32, Int64, CharUInt64Double, e .Single

Aplica-se a

Ver também