m_taskId field
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
The backing field for the System.Threading.Tasks.Task.Id property.
Namespace: System.Threading.Tasks
Assembly: mscorlib (in mscorlib.dll)
Because you can't access this internal member from the .NET Framework, the following syntax is provided in Common Intermediate Language (CIL).
Syntax
.field private int32 m_taskId