Public Class MultiSelectionV Private WithEvents m_MultiSelectionVM As MultiSelectionVM Sub New(Owner As Window, MultiSelVM As MultiSelectionVM) MyBase.New(Owner) ' This call is required by the designer. InitializeComponent() Me.DataContext = MultiSelVM ' Assegno al riferimento locale al VM il VM preso dal DataContext m_MultiSelectionVM = MultiSelVM Me.Show() End Sub End Class