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Contract.EnsuresOnThrow(TException) Method (Boolean)

Specifies a postcondition contract for the enclosing method or property, based on the provided exception and condition.

Namespace:  System.Diagnostics.Contracts
Assembly:  mscorlib (in mscorlib.dll)

[<ConditionalAttribute("CONTRACTS_FULL")>]
static member EnsuresOnThrow : 
        condition:bool -> unit   when 'TException : Exception

Type Parameters

TException

The type of exception that invokes the postcondition check.

Parameters

condition
Type: System.Boolean

The conditional expression to test.

The condition parameter specifies a postcondition that is expected to be true when the enclosing method or property terminates abnormally and an exception of type TException is thrown.

  • This method call must be at the beginning of a method or property, before any other code.

  • This contract is exposed to clients; therefore, it must only reference members that are at least as visible as the enclosing method.

  • You must use the binary rewriter for run-time enforcement of this postcondition.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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