public MainWindow()
{
InitializeComponent();
DataContext = this;
Groups = new ObservableCollection<Group>();
for (int g = 1; g < 6; g++)
{
var cg = new Group { Name = string.Format("Group {0}", g) };
Groups.Add(cg);
for (int c = 1; c < 6; c++)
{
var cc = new Category { Name = string.Format("Category {0}-{1}", g, c) };
cg.Categories.Add(cc);
for (int p = 1; p < 6; p++)
{
var cp = new Pattern { Name = string.Format("Pattern {0}-{1}-{2}", g, c, p) };
cc.Patterns.Add(cp);
}
}
}
}
public void Add(Category c)
{
c.Parent = this;
Categories.Add(c);
}