Stops time interval measurement, resets the elapsed time to zero, and starts measuring elapsed time.
Assembly: System (in System.dll)
A Stopwatch instance calculates and retains the cumulative elapsed time across multiple time intervals, until the instance is reset or restarted. Use Stop to stop the current interval measurement and retain the cumulative elapsed time value. Use Reset to stop any interval measurement in progress and clear the elapsed time value. Use to stop current interval measurement and start a new interval measurement.
.NET FrameworkSupported in: 4.6, 4.5, 4
.NET Framework Client ProfileSupported in: 4
Portable Class LibrarySupported in: Portable Class Library
.NET for Windows Store appsSupported in: Windows 8
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.