Type.IsEnumDefined(Object) Method

Reference

Definition

Namespace:: System

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Type.Enum.cs

Source:: Type.Enum.cs

Source:: Type.Enum.cs

Important

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Returns a value that indicates whether the specified value exists in the current enumeration type.

public:
 virtual bool IsEnumDefined(System::Object ^ value);

public virtual bool IsEnumDefined(object value);

abstract member IsEnumDefined : obj -> bool
override this.IsEnumDefined : obj -> bool

Public Overridable Function IsEnumDefined (value As Object) As Boolean

Parameters

value: Object

The value to be tested.

Returns

Boolean

true if the specified value is a member of the current enumeration type; otherwise, false.

Exceptions

ArgumentException

The current type is not an enumeration.

ArgumentNullException

value is null.

InvalidOperationException

value is of a type that cannot be the underlying type of an enumeration.

Applies to

Продукт	Версии
.NET	Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	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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