Assert Method (Boolean, String)
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Contract.Assert Method (Boolean, String)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Checks for a condition; if the condition is false, follows the escalation policy set by the analyzer and displays the specified message.

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

[ConditionalAttribute("CONTRACTS_FULL")]
[ConditionalAttribute("DEBUG")]
public static void Assert(
	bool condition,
	string userMessage
)

Parameters

condition
Type: System.Boolean
The conditional expression to test.
userMessage
Type: System.String
A message to display if the condition is not met.

The default escalation policy is to notify the attached debugger about a contract failure or to display an Assert dialog box if a debugger is not attached. Optionally, the analyzer can be instructed to throw an exception. The userMessage parameter is passed to the debugger output. If userMessage is not a constant string literal, tools may not be able to read it.

Windows Phone OS

Supported in: 8.1, 8.0

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