Create a new thread in VB.NET

Question

I am trying to create a new thread using an anonymous function but I keep getting errors. Here is my code:

New Thread(Function()      'Do something here End Function).Start 

Here are the errors I get:

New:

Syntax Error

End Function:

'End Function' must be preceded by a matching 'Function'.

Answer 1

There's two ways to do this;

1. With the AddressOf operator to an existing method

   Sub MyBackgroundThread()   Console.WriteLine("Hullo") End Sub 

   And then create and start the thread with;

   Dim thread As New Thread(AddressOf MyBackgroundThread) thread.Start() 

2. Or as a lambda function.

   Dim thread as New Thread(   Sub()      Console.WriteLine("Hullo")   End Sub ) thread.Start() 

Answer 2

It is called a lambda expression in VB. The syntax is all wrong, you need to actually declare a variable of type Thread to use the New operator. And the lambda you create must be a valid substitute for the argument you pass to the Thread class constructor. None of which take a delegate that return a value so you must use Sub, not Function. A random example:

Imports System.Threading  Module Module1      Sub Main()         Dim t As New Thread(Sub()                                 Console.WriteLine("hello thread")                             End Sub)         t.Start()         t.Join()         Console.ReadLine()     End Sub  End Module