Expr.UnionCaseTest Method (F#)

Creates an expression that represents a test of a value is of a particular union case.

Namespace/Module Path: Microsoft.FSharp.Quotations

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

// Signature:
static member UnionCaseTest : Expr * UnionCaseInfo -> Expr

// Usage:
Expr.UnionCaseTest (source, unionCase)

Parameters

• source
  Type: Expr

  The expression to test.

• unionCase
  Type: UnionCaseInfo

  The description of the union case.

Return Value

The resulting expression.

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

Quotations.Expr Class (F#)

Microsoft.FSharp.Quotations Namespace (F#)