This is a MSDN example http://msdn.microsoft.com/en-us/library/bb534972.aspx.
In the code, if you take a look at this part, I can not figure out where the keyword Function(...) comes from. It sets a description for the function that follows it, I know this, but in the IDE, Function(pet) is a blue keyword. I'm having trouble finding out how that was put together, or what other descption can go there. At a loss for the terminology also.
Code:
Structure Pet
Public Name As String
Public Age As Integer
Public Vaccinated As Boolean
End Structure
Shared Sub AnyEx3()
' Create a list of Pets
Dim pets As New List(Of Pet)(New Pet() _
{New Pet With {.Name = "Barley", .Age = 8, .Vaccinated = True}, _
New Pet With {.Name = "Boots", .Age = 4, .Vaccinated = False}, _
New Pet With {.Name = "Whiskers", .Age = 1, .Vaccinated = False}})
' Determine whether any pets over age 1 are also unvaccinated.
Dim unvaccinated As Boolean = _
pets.Any(Function(pet) pet.Age > 1 And pet.Vaccinated = False)
' Display the output.
Dim text As String = IIf(unvaccinated, "are", "are not")
MsgBox("There " & text & " unvaccinated animals over age 1.")
End Sub
' This code produces the following output:
'
' There are unvaccinated animals over age 1.Code:
pets.Any(Function(pet) pet.Age > 1 And pet.Vaccinated = False)