protected override void OnClosed(EventArgs e)
{
base.OnClosed(e);
ParticleConstraintDialogueVM vm = DataContext as ParticleConstraintDialogueVM;
vm.Close();
}
void SetupDataContext()
{
ParticleConstraintDialogueVM vm = new ParticleConstraintDialogueVM();
DataContext = vm;
if (vm.CloseAction == null)
{
vm.CloseAction = new Action(Close);
}
}