How would I declare a nested function in VB.NET? For example, I want to do something like this:
Function one()
Function two()
End Function
End Function
However, this statement is invalid in VB.NET because of unclosed function.
Are you asking how to write a lambda expression?
A lambda expression is a function or subroutine without a name that can be used wherever a delegate is valid. Lambda expressions can be functions or subroutines and can be single-line or multi-line. You can pass values from the current scope to a lambda expression.
You create lambda expressions by using the Function or Sub keyword, just as you create a standard function or subroutine. However, lambda expressions are included in a statement.
For example, the following code will print "Hello World!":
Dim outputString As Action(Of String) = Sub(x As String)
Console.WriteLine(x)
End Sub
outputString("Hello World!")
For more examples, see here: VB.NET Lambda Expression