Novacode.Paragraph.ApplyTextFormattingProperty C# (CSharp) Method

        internal void ApplyTextFormattingProperty(XName textFormatPropName, string value, object content)
        {
            XElement rPr = null;

            if (runs.Count == 0)
            {
                XElement pPr = Xml.Element(XName.Get("pPr", DocX.w.NamespaceName));
                if (pPr == null)
                {
                    Xml.AddFirst(new XElement(XName.Get("pPr", DocX.w.NamespaceName)));
                    pPr = Xml.Element(XName.Get("pPr", DocX.w.NamespaceName));
                }

                rPr = pPr.Element(XName.Get("rPr", DocX.w.NamespaceName));
                if (rPr == null)
                {
                    pPr.AddFirst(new XElement(XName.Get("rPr", DocX.w.NamespaceName)));
                    rPr = pPr.Element(XName.Get("rPr", DocX.w.NamespaceName));
                }

                rPr.SetElementValue(textFormatPropName, value);
                var last = rPr.Elements(textFormatPropName).Last();
                if (content as XAttribute != null)//If content is an attribute
                {
                    if (last.Attribute(((XAttribute)(content)).Name) == null)
                    {
                        last.Add(content); //Add this attribute if element doesn't have it
                    }
                    else
                    {
                        last.Attribute(((XAttribute)(content)).Name).Value = ((XAttribute)(content)).Value; //Apply value only if element already has it
                    }
                }
                return;
            }

            var contentIsListOfFontProperties = false;
            var fontProps = content as IEnumerable;
            if (fontProps != null)
            {
                foreach (object property in fontProps)
                {
                    contentIsListOfFontProperties = (property as XAttribute != null);
                }
            }

            foreach (XElement run in runs)
            {
                rPr = run.Element(XName.Get("rPr", DocX.w.NamespaceName));
                if (rPr == null)
                {
                    run.AddFirst(new XElement(XName.Get("rPr", DocX.w.NamespaceName)));
                    rPr = run.Element(XName.Get("rPr", DocX.w.NamespaceName));
                }

                rPr.SetElementValue(textFormatPropName, value);
                XElement last = rPr.Elements(textFormatPropName).Last();

                if (contentIsListOfFontProperties) //if content is a list of attributes, as in the case when specifying a font family
                {
                    foreach (object property in fontProps)
                    {
                        if (last.Attribute(((XAttribute)(property)).Name) == null)
                        {
                            last.Add(property); //Add this attribute if element doesn't have it
                        }
                        else
                        {
                            last.Attribute(((XAttribute)(property)).Name).Value =
                              ((XAttribute)(property)).Value; //Apply value only if element already has it
                        }
                    }
                }

                if (content as XAttribute != null)//If content is an attribute
                {
                    if (last.Attribute(((XAttribute)(content)).Name) == null)
                    {
                        last.Add(content); //Add this attribute if element doesn't have it
                    }
                    else
                    {
                        last.Attribute(((XAttribute)(content)).Name).Value = ((XAttribute)(content)).Value; //Apply value only if element already has it
                    }
                }
                else
                {
                    //IMPORTANT
                    //But what to do if it is not?
                }
            }
        }