System.Xml.XmlDataDocument.OnNodeChanging C# (CSharp) Метод

        private void OnNodeChanging(object sender, XmlNodeChangedEventArgs args)
        {
            if (_ignoreXmlEvents)
                return;
            if (DataSet.EnforceConstraints != false)
                throw new InvalidOperationException(SR.DataDom_EnforceConstraintsShouldBeOff);
        }