public static XElement AddWithIndentation(this XElement element, XElement newContent)
{
int indentationLevel = 0;
XElement tmp = element;
while (tmp != null)
{
tmp = tmp.Parent;
indentationLevel++;
}
if (!element.Nodes().Any())
{
element.Add(new XText(Environment.NewLine + GetIndentation(indentationLevel - 1)));
}
XText whitespace = element.Nodes().Last() as XText;
if (whitespace != null && string.IsNullOrWhiteSpace(whitespace.Value))
{
whitespace.AddBeforeSelf(new XText(Environment.NewLine + GetIndentation(indentationLevel)));
whitespace.AddBeforeSelf(newContent = FormatXml(newContent, indentationLevel));
}
else
{
element.Add(new XText(Environment.NewLine + GetIndentation(indentationLevel)));
element.Add(newContent = FormatXml(newContent, indentationLevel));
}
return(newContent);
}
public static void ElementsBeforeSelfWithXNameBeforeAndAfter()
{
XText aText = new XText("a"), bText = new XText("b");
XElement a = new XElement("A", aText), b = new XElement("B", bText);
aText.AddBeforeSelf(b);
IEnumerable <XElement> nodes = aText.ElementsBeforeSelf("B");
Assert.Equal(1, nodes.Count());
b.Remove();
Assert.Equal(0, nodes.Count());
}
public static void AddBeforeSelfIndented(this XNode self, XElement addedElement)
{
string selfIndent;
if (TryGetElementIndent(self, out selfIndent))
{
IndentDescendantNodes(addedElement, selfIndent);
var newLineAndIndent = new XText("\n" + selfIndent);
self.AddBeforeSelf(newLineAndIndent);
newLineAndIndent.AddBeforeSelf(addedElement);
}
else
{
// Ignore indent
self.AddBeforeSelf(addedElement);
}
}
public static void ElementsBeforeSelfWithXNameBeforeAndAfter()
{
XText aText = new XText("a"), bText = new XText("b");
XElement a = new XElement("A", aText), b = new XElement("B", bText);
aText.AddBeforeSelf(b);
IEnumerable<XElement> nodes = aText.ElementsBeforeSelf("B");
Assert.Equal(1, nodes.Count());
b.Remove();
Assert.Equal(0, nodes.Count());
}