What is this doing internally?

    Public Shared Function FindGroupStudentByStudentIdent(ByVal groupStudentCollection As EntityCollection, ByVal studentIdent As Integer) As Integer
        Dim i As Integer

        i = groupStudentCollection.Find(New EntityPropertyDescriptor2(EntityFieldFactory.Create(Elementary.GradeBook.LLBL.GroupStudentFieldIndex.StudentIdent), _
          GetType(GroupStudentEntity), False), studentIdent)

        Return i
    End Function

Is it looping thru the collection until it finds a match or is it faster then that?

Thanks,

Fishy

It loops with a forloop and performs a linear search, using .Equals(). This is similar to performing IndexOf for example in a collection which also performs a linear search.

Sometimes when I need to know what a compiled .NET dll is doing internally, I use Lutz Roeder's Reflector for .NET, available at:

http://www.aisto.com/roeder/dotnet/

It offers a 'decompilation' view of functions so you can see what's happening internally. Pretty nifty.