Question

I am having a problem with selecting a certain child node.

What I want to achieve: I you have this treeview for example (one parent with two child nodes):
Parent
-Child with a value 5
-Child with a value 2.

I want to add these two values and assign them to Parent node:

Parent result 7
-Child 5
-Child 2.

Of course, a bigger treeview would have several parents and lots of children and they will all add up to one root node.

How can I do this?? pls help.

thx,
Caslav

Answer 1

Dunno if this matches your request, but this will add all childs > parent node

    private void button2_Click(object sender, EventArgs e)
    {
        int grandTotal = CalculateNodes(this.treeView1.Nodes);
    }
    private int CalculateNodes(TreeNodeCollection nodes)
    {
        int grandTotal = 0;
        foreach (TreeNode node in nodes)
        {
            if (node.Nodes.Count > 0)
            {
                int childTotal = CalculateNodes(node.Nodes);
                node.Text = childTotal.ToString();
                grandTotal += childTotal;
            }
            else
            {
                grandTotal += Convert.ToInt32(node.Text);
            }
        }
        return grandTotal;
    }

you should do some error checking etc etc to make it solid