Contract::Requires<TException> Method (Boolean)
Specifies a precondition contract for the enclosing method or property, and throws an exception if the condition for the contract fails.
Assembly: mscorlib (in mscorlib.dll)
public: generic<typename TException> where TException : Exception static void Requires( bool condition )
Parameters
- condition
-
Type:
System::Boolean
The conditional expression to test.
Type Parameters
- TException
The exception to throw if the condition is false.
Important |
|---|
You must turn on run-time checking to use the Requires<TException> method. If run-time checking is turned off, the process will be terminated. To obtain the tools for runtime checking, see Code Contracts on the MSDN DevLabs Web site. |
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.
Use this method instead of the Contract::Requires(Boolean) method when you want to throw an exception if the precondition fails.
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
