Question

Sample One

Public _objLock As Object = New Object
Public ReadOnly Property MyObjects() As IEnumerable(Of Object)
    Get
        SyncLock _objLock
            If _myObjects Is Nothing Then
                _myObject = LoadMyObjects()
            End If
            Return _myObjects
        End SyncLock
    End Get
End Property

Sample Two

Public _objLock As Object = New Object
Public ReadOnly Property MyObjects() As IEnumerable(Of Object)
    Get
        SyncLock _objLock
            If _myObjects Is Nothing Then
                _myObject = LoadMyObjects()
            End If              
        End SyncLock
        Return _myObjects
    End Get
End Property

Will there be any difference between these implementations ?

Answer 1

No, returning inside a lock makes no difference. Once you leave the lock, it will cease to exist.