/// <summary>
/// IsReadOnlyProperty property changed handler.
/// </summary>
/// <param name="oldValue">Old value.</param>
/// <param name="newValue">New value.</param>
protected virtual void OnIsReadOnlyChanged(bool oldValue, bool newValue)
{
if (!_settingIsReadOnly)
{
_settingIsReadOnly = true;
this.IsReadOnly = oldValue;
throw new InvalidOperationException(string.Format(CultureInfo.CurrentUICulture, Properties.Resources.InvalidAttemptToChangeReadOnlyProperty, "IsReadOnly"));
}
else
{
_interactionHelper.OnIsReadOnlyChanged(newValue);
}
}