Type.IsEnum Property
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Gets a value indicating whether the current Type represents an enumeration.
public:
virtual property bool IsEnum { bool get(); };
public:
property bool IsEnum { bool get(); };
public virtual bool IsEnum { get; }
public bool IsEnum { get; }
member this.IsEnum : bool
Public Overridable ReadOnly Property IsEnum As Boolean
Public ReadOnly Property IsEnum As Boolean
true
if the current Type represents an enumeration; otherwise, false
.
The following example demonstrates how to use the IsEnum
property.
using namespace System;
enum class Color
{ Red, Blue, Green };
int main()
{
Type^ colorType = Color::typeid;
Type^ enumType = Enum::typeid;
Console::WriteLine( "Is Color an enum? {0}.", colorType->IsEnum );
Console::WriteLine( "Is Color a value type? {0}.", colorType->IsValueType );
Console::WriteLine( "Is Enum an enum Type? {0}.", enumType->IsEnum );
Console::WriteLine( "Is Enum a value type? {0}.", enumType->IsValueType );
}
// The example displays the following output:
// Is Color an enum? True.
// Is Color a value type? True.
// Is Enum an enum type? False.
// Is Enum a value type? False.
using System;
public enum Color
{ Red, Blue, Green }
class TestIsEnum
{
public static void Main()
{
Type colorType = typeof(Color);
Type enumType = typeof(Enum);
Console.WriteLine("Is Color an enum? {0}.", colorType.IsEnum);
Console.WriteLine("Is Color a value type? {0}.", colorType.IsValueType);
Console.WriteLine("Is Enum an enum Type? {0}.", enumType.IsEnum);
Console.WriteLine("Is Enum a value type? {0}.", enumType.IsValueType);
}
}
// The example displays the following output:
// Is Color an enum? True.
// Is Color a value type? True.
// Is Enum an enum type? False.
// Is Enum a value type? False.
open System
type Color =
| Red = 0
| Blue = 1
| Green = 2
let colorType = typeof<Color>
let enumType = typeof<Enum>
printfn $"Is Color an enum? {colorType.IsEnum}."
printfn $"Is Color a value type? {colorType.IsValueType}."
printfn $"Is Enum an enum Type? {enumType.IsEnum}."
printfn $"Is Enum a value type? {enumType.IsValueType}."
// The example displays the following output:
// Is Color an enum? True.
// Is Color a value type? True.
// Is Enum an enum type? False.
// Is Enum a value type? False.
Public Enum Color
Red
Blue
Green
End Enum
Class Example
Public Shared Sub Main()
Dim colorType As Type = GetType(Color)
Dim enumType As Type = GetType([Enum])
Console.WriteLine("Is Color an enum? {0}.", colorType.IsEnum)
Console.WriteLine("Is Color a value type? {0}.", colorType.IsValueType)
Console.WriteLine("Is Enum an enum type? {0}.", enumType.IsEnum)
Console.WriteLine("Is Enum a value type? {0}.", enumType.IsValueType)
End Sub
End Class
' The example displays the following output:
' Is Color an enum? True.
' Is Color a value type? True.
' Is Enum an enum type? False.
' Is Enum a value type? False.
This property returns true
for an enumeration, but not for the Enum type itself.
If the current Type represents a constructed generic type, this property applies to the generic type definition from which the type was constructed. For example, if the current Type represents MyGenericType<int>
(MyGenericType(Of Integer)
in Visual Basic), the value of this property is determined by MyGenericType<T>
.
If the current Type represents a type parameter in the definition of a generic type or generic method, this property always returns false
.
This property is read-only.
제품 | 버전 |
---|---|
.NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
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