Recursive reading of List<Object>

Answer 1

You need to create a recursive Method that "renders" a category item. This methods needs to be aware of the level or current depth in order render to correct indenting:

private void RenderCategory(HtmlTextWriter writer, CategoryItem item, int level)
{
  writer.Write("
{1}
", 
    level * 5,
    HttpUtility.HtmlEncode(item.Name));

  int nextLevel = ++level;
  foreach (CategoryItem child in item.SubCategories)
  { 
    RenderCategory(writer, child, nextLevel);
  }
}