public static void Print(PictureCategory cat, int level)
{
StringBuilder sb = new StringBuilder();
Console.WriteLine("{0}{1}", sb.Append(' ', level).ToString(), cat.Name);
cat.Subcategories.ForEach(child => Print(child, level + 1));
}
public static void Run()
{
using (var context = new Recipe5Context())
{
var louvre = new PictureCategory {
Name = "Louvre"
};
var child = new PictureCategory {
Name = "Egyptian Antiquites"
};
louvre.Subcategories.Add(child);
child = new PictureCategory {
Name = "Sculptures"
};
louvre.Subcategories.Add(child);
child = new PictureCategory {
Name = "Paintings"
};
louvre.Subcategories.Add(child);
var paris = new PictureCategory {
Name = "Paris"
};
paris.Subcategories.Add(louvre);
var vacation = new PictureCategory {
Name = "Summer Vacation"
};
vacation.Subcategories.Add(paris);
context.PictureCategories.Add(paris);
context.SaveChanges();
}
using (var context = new Recipe5Context())
{
var roots = context.PictureCategories.Where(c => c.ParentCategory == null).ToList();
roots.ForEach(root => Print(root, 0));
}
}