treeview class binding

Question

I am newbie on c#. I want to make a treeview with having point positions data. It's treeview looks like following..

Form1 (parent) Triangle1 (child1) Triangle2 (child2)

If I cliked Triangle1 then I want to have Triangle1's coord informations. But when I maked triangle class and tried to input treeview node..then that makes error.. how can I solve this problem?

addition.. public partial class Form1 : Form { public class BigCanvas { public string Id; public string Name; }

    public class Triangle
    {
        public string Id;
        public string Name;
        public Point point1;
        public Point point2;
        public Point point3;
    }

    public Form1()
    {
        InitializeComponent();
        this.Name = "Draw Triangle";
        this.Text = "Draw sample";
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        BigCanvas bc1 = new BigCanvas();
        bc1.Id = "0";
        bc1.Name = "sample1";
        Triangle ta1 = new Triangle();
        ta1.Id = "01";
        ta1.Name = "triangle1";
        ta1.point1 = new Point(30, 50);
        ta1.point2 = new Point(40,60);
        ta1.point3 = new Point(70,80);

        TreeNode root = treeView1.Nodes.Add(bc1);  // error
        root.Nodes.Add(ta1); // error
        root.Nodes.Add(ta2); // error
    }

    private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
    {
        TreeNode current = e.Node;

        // Draw with triangle point           
    }

But I can't add Triangle class to TreeNode!! ... then what is alternative solve to this problem..?

Thanks for advice Grant Winney. I add some code and explanation — UGIF

Chehre Chehre · Accepted Answer · 2014-11-26T08:01:50

You can add your node to tree:

class MyNode: TreeNode
{
    public string AnotherName { get; set; }
    public int Id{ get; set; }
    public MyNewObjectType NewObject{ get; set; }
    .
    .
}

Tree.Nodes.Add(MyNode);

or use Tag property of Node.

node1.Tag = MyClass;
Tree.Nodes.Add(node1);

treeview class binding

1 Answers