Searching a custom object

Question

As a follow-up to my previous question, and continuing with the sample code in the answer there, how can I e.g. find out if a ParameterSet exists in my ParameterSetCollection with a Y parameter of "foobar"? I can write code to iterate over the ParameterSet, but it seems there should be a better way.

Answer 1

Dim parameterSets As New ParameterSetCollection

'...

If parameterSetCollection.Any(Function(ps) ps.Y = "foobar") Then
    'At least one item in the collection has a Y value of "foobar".
End If

Any is a LINQ method and LINQ excels at compressing loops. That code is functionally equivalent to this:

Dim parameterSets As New ParameterSetCollection

'...

Dim match = False

For Each ps In parameterSetCollection
    If ps.Y = "foobar" Then
        match = True
        Exit For
    End If
Next

If match Then
    'At least one item in the collection has a Y value of "foobar".
End If