private StringBuilder Display(Element node, StringBuilder currentTree)
{
// Open tag
currentTree.Append(new string(' ', this.displayDepthLevel * DisplayDepthSpaces))
.Append("<")
.Append(node.Type)
.Append(">")
.AppendLine();
this.displayDepthLevel++;
foreach (var child in node.SubElements)
{
currentTree = this.Display(child, currentTree);
}
// Closing tag
this.displayDepthLevel--;
currentTree.Append(new string(' ', this.displayDepthLevel * DisplayDepthSpaces))
.Append("<")
.Append(node.Type)
.Append("/>")
.AppendLine();
return currentTree;
}
public void Remove(Element element)
{
if (element == null)
{
throw new InvalidOperationException("Child cannot be null!");
}
SubElements.Remove(element);
}
public void Add(Element child)
{
if (child == null)
{
throw new InvalidOperationException("Child cannot be null!");
}
this.Children.Add(child);
}
public bool Remove(Element child)
{
if (child == null)
{
throw new InvalidOperationException("Child cannot be null!");
}
var removed = this.Children.Remove(child);
return removed;
}
public static void Main()
{
Element html = new Element(
"html",
new Element("head"),
new Element("body",
new Element("section",
new Element("h2"),
new Element("p"),
new Element("span")),
new Element("footer")));
File.WriteAllText("index.txt", html.Display(0));
}
