log4net SDK Reference |

# SystemInfo.CurrentThreadId Property

Gets the ID of the current thread.

[Visual Basic]
Public Shared ReadOnly Property CurrentThreadId As Integer
[C#]
public static int CurrentThreadId {get;}

#### Property Value

The ID of the current thread.

#### Remarks

On the .NET framework, the `AppDomain.GetCurrentThreadId` method is used to obtain the thread ID for the current thread. This is the operating system ID for the thread.

On the .NET Compact Framework 1.0 it is not possible to get the operating system thread ID for the current thread. The native method `GetCurrentThreadId` is implemented inline in a header file and cannot be called.

On the .NET Framework 2.0 the `Thread.ManagedThreadId` is used as this gives a stable id unrelated to the operating system thread ID which may change if the runtime is using fibers.

#### See Also

SystemInfo Class | log4net.Util Namespace