Expr.Cast<'T> Method (F#)

Returns a new typed expression given an underlying runtime-typed expression. A type annotation is usually required to use this function, and using an incorrect type annotation may result in a later runtime exception.

Namespace/Module Path: Microsoft.FSharp.Quotations

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

// Signature:
static member Cast : Expr -> Expr<'T>

// Usage:
Expr.Cast (source)


Type: Expr

The expression to cast.

The resulting typed expression.

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

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

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