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

  • Статья

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)

Parameters

  • source
    Type: Expr

    The expression to cast.

Return Value

The resulting typed 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#)