Ferracchiati's blog

Starting from the June 2007 CTP release even Visual Basic language has its own way to manage Lambda expressions. Let's see an example:

1: Public Delegate Function Sum(ByVal a As Integer, ByVal b As Integer) As Integer
2: ...
3: Dim DoSum As Sum = Function(ByVal a, ByVal b) a + b
4: Dim ret As Integer = DoSum(4, 5)
5:
6: 'Using named arguments
7: ret = DoSum(b:=3, a:=4)

Using the Function keyword you can define the Lambda expression (see row 3). In the next beta 2 release will not be more needed to specify the ByVal keyword for the Lambda's parameters.

Thanks to Corrado Cavalli for this info.

Labels: June 2007 CTP, LINQ, VB