How to add more values to a TreeNode class in C#

A TreeNode class has

Text Name Tag

I need to assign more values to a TreeNode class like float1, float2, ..开发者_开发百科. float6.

How can I do this??? pls help.

Thx, Caslav

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You can create a new class which inherits the TreeNode. For each value you want to store in the treenode, create a property for that value. When working with the Treeview, simply cast the TreeNode to your custom TreeNode class.

Example:

public class JobTreeNode : TreeNode {

    private int intField1;

    public int Field1 {
        get {
            return intField1;
        }
        set {
            intField1 = value;
        }
    }
}

Usage (added after comments)

// Add the node
JobTreeNode CustomNode = new JobTreeNode();
CustomNode.Text = "Test";
CustomNode.Field1 = 10
treeView1.Nodes.add(CustomNode);


// SelectedNode 
((CustomNode)(treeView1.SelectedNode)).Field1;

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The Tag property of TreeNode is "object". Can't you just store your data in there using a dataclass of some kind?

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You can create a lightweight class to hold your float1..6 and put an instance in the Tag property.

Alternatively, you can use a Dictionary<TreeNode, FloatsClass> or maybe use 6 separate Dictionary<TreeNode, float>.

Note that dotNet 4 has a new Tuple<A,B,C,...> type to make this kind of situations a little easier.

---

You could have:

class TreeNodeProperties
{
  public float Float1 { get; set;}
  public float Float2 { get; set;}
  public float Float3 { get; set;}
  public float Float4 { get; set;}
  public float Float5 { get; set;}
  public float Float6 { get; set;}
}

Then set the Tag property on your TreeNode:

var properties = new TreeNodeProperties()
{
  Float1 = 10,
  Float2 = 20,
  Float3 = 30,
  Float4 = 40,
  Float5 = 50,
  Float6 = 60
}
myTreeNode.Tag = properties;

To read the properties:

var nodeproperties = TreeViewMyTree.SelectedNode.Tag as TreeNodeProperties;
MessageBox.Show("Float5: "+nodeproperties.Float5);