Type.IsPrimitive Vlastnost
Definice
Důležité
Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.
Získá hodnotu určující, zda Type je jedním z primitivních typů.
public:
property bool IsPrimitive { bool get(); };public bool IsPrimitive { get; }member this.IsPrimitive : boolPublic ReadOnly Property IsPrimitive As BooleanHodnota vlastnosti
true pokud Type je jedním z primitivních typů, jinak false .
Implementuje
Příklady
Následující příklad ukazuje IsContextful vlastnosti IsMarshalByRef , a třídy IsPrimitive Type . Kontroluje, zda lze daný typ hostovat v kontextu, zda jej lze zařadit pomocí odkazu a zda je typ primitivní datový typ.
using namespace System;
using namespace System::Runtime::Remoting::Contexts;
public ref class ContextBoundClass: public ContextBoundObject
{
public:
String^ Value;
};
public ref class Example
{
public:
void Demo()
{
// Determine whether the types can be hosted in a Context.
Console::WriteLine("The IsContextful property for the {0} type is {1}.",
Example::typeid->Name, Example::typeid->IsContextful);
Console::WriteLine("The IsContextful property for the {0} type is {1}.",
ContextBoundClass::typeid->Name, ContextBoundClass::typeid->IsContextful);
// Determine whether the types are marshalled by reference.
Console::WriteLine("The IsMarshalByRef property of {0} is {1}.",
Example::typeid->Name, Example::typeid->IsMarshalByRef );
Console::WriteLine("The IsMarshalByRef property of {0} is {1}.",
ContextBoundClass::typeid->Name, ContextBoundClass::typeid->IsMarshalByRef );
// Determine whether the types are primitive datatypes.
Console::WriteLine("{0} is a primitive data type: {1}.",
int::typeid->Name, int::typeid->IsPrimitive );
Console::WriteLine("{0} is a primitive data type: {1}.",
String::typeid->Name, String::typeid->IsPrimitive );
}
};
int main()
{
Example^ ex = gcnew Example;
ex->Demo();
}
// The example displays the following output:
// The IsContextful property for the Example type is False.
// The IsContextful property for the ContextBoundClass type is True.
// The IsMarshalByRef property of Example is False.
// The IsMarshalByRef property of ContextBoundClass is True.
// Int32 is a primitive data type: True.
// String is a primitive data type: False.
using System;
using System.Runtime.Remoting.Contexts;
public class ContextBoundClass: ContextBoundObject
{
public string Value = "The Value property.";
}
public class Example
{
public static void Main()
{
// Determine whether the types can be hosted in a Context.
Console.WriteLine("The IsContextful property for the {0} type is {1}.",
typeof(Example).Name, typeof(Example).IsContextful);
Console.WriteLine("The IsContextful property for the {0} type is {1}.",
typeof(ContextBoundClass).Name, typeof(ContextBoundClass).IsContextful);
// Determine whether the types are marshalled by reference.
Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
typeof(Example).Name, typeof(Example).IsMarshalByRef);
Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
typeof(ContextBoundClass).Name, typeof(ContextBoundClass).IsMarshalByRef);
// Determine whether the types are primitive datatypes.
Console.WriteLine("{0} is a primitive data type: {1}.",
typeof(int).Name, typeof(int).IsPrimitive);
Console.WriteLine("{0} is a primitive data type: {1}.",
typeof(string).Name, typeof(string).IsPrimitive);
}
}
// The example displays the following output:
// The IsContextful property for the Example type is False.
// The IsContextful property for the ContextBoundClass type is True.
// The IsMarshalByRef property of Example is False.
// The IsMarshalByRef property of ContextBoundClass is True.
// Int32 is a primitive data type: True.
// String is a primitive data type: False.
Imports System.Runtime.Remoting.Contexts
Public Class ContextBoundClass : Inherits ContextBoundObject
Public Value As String = "The Value property."
End Class
Public Class Example
Public Shared Sub Main()
' Determine whether the types can be hosted in a Context.
Console.WriteLine("The IsContextful property for the {0} type is {1}.",
GetType(Example).Name, GetType(Example).IsContextful)
Console.WriteLine("The IsContextful property for the {0} type is {1}.",
GetType(ContextBoundClass).Name, GetType(ContextBoundClass).IsContextful)
' Determine whether the types are marshalled by reference.
Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
GetType(Example).Name, GetType(Example).IsMarshalByRef)
Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
GetType(ContextBoundClass).Name, GetType(ContextBoundClass).IsMarshalByRef)
' Determine whether the types are primitive datatypes.
Console.WriteLine("{0} is a primitive data type: {1}.",
GetType(Integer).Name, GetType(Integer).IsPrimitive)
Console.WriteLine("{0} is a primitive data type: {1}.",
GetType(String).Name, GetType(String).IsPrimitive)
End Sub
End Class
' The example displays the following output:
' The IsContextful property for the Example type is False.
' The IsContextful property for the ContextBoundClass type is True.
' The IsMarshalByRef property of Example is False.
' The IsMarshalByRef property of ContextBoundClass is True.
' Int32 is a primitive data type: True.
' String is a primitive data type: False.
Poznámky
Primitivní typy jsou Boolean , , , , , , , , Byte , , , SByte , Int16 a UInt16 Int32 UInt32 Int64 UInt64 IntPtr UIntPtr Char Double Single .
Pokud aktuální představuje obecný typ nebo parametr typu v definici obecného typu nebo obecné Type metody, vrátí tato vlastnost vždy false hodnotu .