Contract::OldValue<T> Method (T)
.NET Framework (current version)
Represents values as they were at the start of a method or property.
Assembly: mscorlib (in mscorlib.dll)
The following example shows the use of the OldValue<T> method to ensure that a count has been updated. This code example is part of a larger example provided for the ContractClassAttribute class.
Universal Windows Platform
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
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
Show: