gistfile1.vb

' VB.Net 2.0
' a class for videos is what I was using my original code for
Public Class Video
	Private _id As Integer

	Public Property Id() As Integer
		Get
			Return _id
		End Get
		Set(ByVal value As Integer)
			_id = value
		End Set
	End Property
	
	' ...other properties, functions, etc.

	' a private inner class for storing the ID to look for
	Private Class VideoMatcher
		Private ReadOnly _videoSearchID As Integer

		Sub New(ByVal id As Integer)
			_videoSearchID = id
		End Sub

		' a filtering function to pass into List.Find() as a Predicate
		Public Function FindById(ByVal v As Video) As Boolean
			Return v.Id = _videoSearchID
		End Function
	End Class

	Public Shared Function FindVideo(ByVal videoList As List(Of Video), ByVal id As Integer) As Video
		Return videoList.Find(AddressOf New VideoMatcher(id).FindById)
	End Function
End Class

gistfile2.cs

// C# version

public class Video 
{
	public int Id { get; set; }
	
	// ...other properties, functions, etc.

	public static Video FindVideo(List<Video> videoList, int id)
	{
		return videoList.Find(delegate(Video v) { return v.Id == id; });
	}
}

gistfile3.cs

// C# version with lambdas

public class Video 
{
	public int Id { get; set; }
	
	// ...other properties, functions, etc.

	public static Video FindVideo(List<Video> videoList, int id)
	{
		return videoList.Find(v => v.Id == id);
	}
}