System.Data.DataRow.VerifyValueFromStorage C# (CSharp) Method

        private void VerifyValueFromStorage(DataColumn column, DataRowVersion version, object valueFromStorage)
        {
            // ignore deleted rows by adding "newRecord != -1" condition - we do not evaluate computed rows if they are deleted
            if (column.DataExpression != null && !_inChangingEvent && _tempRecord == -1 && _newRecord != -1)
            {
                // for unchanged rows, check current if original is asked for.
                // this is because by design, there is only single storage for an unchanged row.
                if (version == DataRowVersion.Original && _oldRecord == _newRecord)
                {
                    version = DataRowVersion.Current;
                }

                Debug.Assert(valueFromStorage.Equals(column.DataExpression.Evaluate(this, version)),
                    "Value from storage does lazily computed expression value");
            }
        }
    }