Select with Function : Select « LINQ « VB.Net

Select with Function


Imports System
Imports System.Linq
Imports System.Collections.Generic
    Structure Pet
        Public Name As String
        Public Age As Integer
    End Structure

Public Class Example

    Public Shared Sub Main() 
        Dim cats() As Pet = {New Pet With {.Name = "A", .Age = 8}, _
                             New Pet With {.Name = "B", .Age = 4}, _
                             New Pet With {.Name = "C", .Age = 1}}

        Dim dogs() As Pet = {New Pet With {.Name = "D", .Age = 3}, _
                             New Pet With {.Name = "E", .Age = 14}, _
                             New Pet With {.Name = "F", .Age = 9}}

        Dim animals() As IEnumerable(Of Pet) = {cats, dogs}

        Dim query As IEnumerable(Of String) = (animals.SelectMany(Function(pets) pets.Select(Function(pet) pet.Name)))

        For Each name As String In query

    End Sub
End Class


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