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FSharpValue.GetUnionFields Method (F#)

  • Artículo

Identify the union case and its fields for an object.

Namespace/Module Path: Microsoft.FSharp.Reflection

Assembly: FSharp.Core (in FSharp.Core.dll)

// Signature:
static member GetUnionFields : obj * Type * ?BindingFlags -> UnionCaseInfo * obj []
static member GetUnionFields : obj * Type * ?bool -> UnionCaseInfo * obj []

// Usage:
FSharpValue.GetUnionFields (value, unionType)
FSharpValue.GetUnionFields (value, unionType, bindingFlags = bindingFlags)

open FSharpReflectionExtensions
FSharpValue.GetUnionFields (value, unionType, allowAccessToPrivateRepresentation = false)

Parameters

  • value
    Type: obj

    The input union case.

  • unionType
    Type: Type

    The union type containing the value.

  • bindingFlags
    Type: BindingFlags

    Optional binding flags.

  • allowAccessToPrivateRepresentation
    Type: bool

    Optional flag that denotes accessibility of the private representation.

Exceptions

Exception

Condition

ArgumentException

Thrown when the input type is not a union case value.

Return Value

The description of the union case (as a UnionCaseInfoobject) and its fields.

Remarks

If the type is not given, then the runtime type of the input object is used to identify the relevant union type. The type should always be given if the input object may be null. For example, option values may be represented using the null.

Platforms

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

See Also

Reference

Reflection.FSharpValue Class (F#)

Microsoft.FSharp.Reflection Namespace (F#)