Поделиться через


Expr.IfThenElse Method (F#)

Creates if...then...else expressions.

Namespace/Module Path: Microsoft.FSharp.Quotations

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

// Signature:
static member IfThenElse : Expr * Expr * Expr -> Expr

// Usage:
Expr.IfThenElse (guard, thenExpr, elseExpr)

Parameters

  • guard
    Type: Expr

    The condition expression.

  • thenExpr
    Type: Expr

    The then subexpression.

  • elseExpr
    Type: Expr

    The else subexpression.

Return Value

The resulting expression.

Platforms

Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

Version Information

F# Runtime

Supported in: 2.0, 4.0

Silverlight

Supported in: 3

See Also

Reference

Quotations.Expr Class (F#)

Microsoft.FSharp.Quotations Namespace (F#)