System.Xml.XsdValidatingReader.MoveToAttribute C# (CSharp) Method

        public override void MoveToAttribute(int i)
        {
            if (i < 0 || i >= _attributeCount)
            {
                throw new ArgumentOutOfRangeException(nameof(i));
            }
            _currentAttrIndex = i;
            if (i < _coreReaderAttributeCount)
            { //reader attribute
                _coreReader.MoveToAttribute(i);
                if (_inlineSchemaParser == null)
                {
                    _attributePSVI = _attributePSVINodes[i];
                }
                else
                {
                    _attributePSVI = null;
                }
                _validationState = ValidatingReaderState.OnAttribute;
            }
            else
            { //default attribute
                int defaultIndex = i - _coreReaderAttributeCount;
                _cachedNode = (ValidatingReaderNodeData)_defaultAttributes[defaultIndex];
                _attributePSVI = _cachedNode.AttInfo;
                _validationState = ValidatingReaderState.OnDefaultAttribute;
            }
            if (_validationState == ValidatingReaderState.OnReadBinaryContent)
            {
                _readBinaryHelper.Finish();
                _validationState = _savedState;
            }
        }