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[lmgaspar]

Hello,

I created a CustomTreeNode that derives from TreeNode so I can add extra attributes. To create a TreeView that is composed by my CustomTreeNodes I have also created a CustomTreeView that overrides the TreeNode CreateNode() method to return a new CustomTreeNode.

Basically:

public class CustomTreeNode : TreeNode

{

        int type;


        public CustomTreeNode() : base()

        {}


        public void setNodePlageType(int type)

        { this.type = type; }


        public int getNodePlageType()

        { return type; }

}

and

public class CustomTreeView : TreeView

{

        protected override TreeNode CreateNode()

        {

            return new CustomTreeNode();

        }

}

Everything seems fine when I add the CustomTreeNodes to the CustomTreeView, The debug shows that the CustomTreeView.Nodes[0] has a CustomTreeNode element with my "type" custom property correct.

The problem is when I try to use events associated with the CustomTreeView. I added this event:

TreeView1.SelectedNodeChanged += new EventHandler(NodeExpanded);

but that method receives:

void NodeExpanded(Object sender, EventArgs e)

So I only have access to the selected node by using the property TreeView1.SelectedNode which returns a TreeNode not a CustomTreeNode! So when I try to do something with the selected node I lose my "type" custom property...

Can you help me reformulate my code?

I am doing this in a Sharepoint 2010 WebPart, don't know if it is any useful information...