public bool AllowClear { get; }

Public ReadOnly Property AllowClear As Boolean
	Get

As any other update operation performed directly on the view (as opposed to on the base data collection on which that view depends, see AsUpdatable<(Of <<'(T>)>>)(View<(Of <<'(T>)>>))), it is allowed only if the view is not read-only (see IsReadOnly). Note that the same operation is often allowed on the base data collection, and it will normally result in the corresponding change of the view.