System.Runtime.Serialization.Json.XmlJsonWriter.WriteEndElement C# (CSharp) Method

        public override void WriteEndElement()
        {
            if (IsClosed)
            {
                ThrowClosed();
            }

            if (_depth == 0)
            {
                throw new XmlException(SR.JsonEndElementNoOpenNodes);
            }
            if (HasOpenAttribute)
            {
                throw new XmlException(SR.Format(SR.JsonOpenAttributeMustBeClosedFirst, "WriteEndElement"));
            }

            _endElementBuffer = false;

            JsonNodeType token = ExitScope();
            if (token == JsonNodeType.Collection)
            {
                _indentLevel--;
                if (_indent)
                {
                    if (_nodeType == JsonNodeType.Element)
                    {
                        _nodeWriter.WriteText(WHITESPACE);
                    }
                    else
                    {
                        WriteNewLine();
                        WriteIndent();
                    }
                }
                _nodeWriter.WriteText(JsonGlobals.EndCollectionChar);
                token = ExitScope();
            }
            else if (_nodeType == JsonNodeType.QuotedText)
            {
                // For writing "
                WriteJsonQuote();
            }
            else if (_nodeType == JsonNodeType.Element)
            {
                if ((_dataType == JsonDataType.None) && (_serverTypeValue != null))
                {
                    throw new XmlException(SR.Format(SR.JsonMustSpecifyDataType, JsonGlobals.typeString, JsonGlobals.objectString, JsonGlobals.serverTypeString));
                }

                if (IsWritingNameWithMapping && !WrittenNameWithMapping)
                {
                    // Ending </item> without writing item attribute
                    // Not providing a better error message because localization deadline has passed.
                    throw new XmlException(SR.Format(SR.JsonMustSpecifyDataType, JsonGlobals.itemString, string.Empty, JsonGlobals.itemString));
                }

                // the element is empty, it does not have any content, 
                if ((_dataType == JsonDataType.None) ||
                    (_dataType == JsonDataType.String))
                {
                    _nodeWriter.WriteText(JsonGlobals.QuoteChar);
                    _nodeWriter.WriteText(JsonGlobals.QuoteChar);
                }
            }
            else
            {
                // Assert on only StandaloneText and EndElement because preceding if
                //    conditions take care of checking for QuotedText and Element.
                Fx.Assert((_nodeType == JsonNodeType.StandaloneText) || (_nodeType == JsonNodeType.EndElement),
                    "nodeType has invalid value " + _nodeType + ". Expected it to be QuotedText, Element, StandaloneText, or EndElement.");
            }
            if (_depth != 0)
            {
                if (token == JsonNodeType.Element)
                {
                    _endElementBuffer = true;
                }
                else if (token == JsonNodeType.Object)
                {
                    _indentLevel--;
                    if (_indent)
                    {
                        if (_nodeType == JsonNodeType.Element)
                        {
                            _nodeWriter.WriteText(WHITESPACE);
                        }
                        else
                        {
                            WriteNewLine();
                            WriteIndent();
                        }
                    }
                    _nodeWriter.WriteText(JsonGlobals.EndObjectChar);
                    if ((_depth > 0) && _scopes[_depth] == JsonNodeType.Element)
                    {
                        ExitScope();
                        _endElementBuffer = true;
                    }
                }
            }

            _dataType = JsonDataType.None;
            _nodeType = JsonNodeType.EndElement;
            _nameState = NameState.None;
            _wroteServerTypeAttribute = false;
        }