how to get child node of node of treeview

[Parameswar Nayak]

I have a treeview having 3 levels.I need to get all level node tags separately which are checked.
i.e
parentnodetag={ 1,2...}
childTag={7,9,8 ...}
childOfChildTag ={9,10...}
Can any one help me Thanks in advance.

[Christian Binder]

I think the easiest way would be, if you use a Dictionary key=level, value=List of tags for this level
Dictionary<int, List<object>> //if Tag is type object

then you iterate over the treeview and store the checked items tags in the Dict.

e.g.

void foo(Node n, int level) {
  if(Node.Checked)
    SaveTag(Node, level);
  foreach(Node child in Node.Childs)
    foo(child, level+1);
}

SaveTag would store the Tag of the passed Node in Dictionary.