Hi,

To do that without using the mouse and using the SelectedNode property you would need to set the SelectedNode property to the correct node first. Either I still don't understand your question, or I don't see why you'd do it that way... you don't need to use the selected node property to add a child, you just have to get a reference to the parent node anyway you can. That's why I posted the code for the GetNodeFromPath method, using that you can find the node by name without having to have the node selected.

Why do you want to use the SelectedNode property ? What is it you are trying to do ?

If you want to add a new node to ParentNode1 without selecting it, you need to 'find it in the tree first', since there can be multiple nodes called 'ParentNode1' in the tree in different branches you can't use just the one node name, you have to use a path, like "MyRoot\ParentNode1". If you want to do that, then again the code I posted before using GetNodeFromPath should work.

TreeView.Nodes is a TreeNodeCollection .

This means you can use it's members to access it directly:

treeView1.Nodes["ParentNode1"].Add("my new node");
// Or:
treeView1.Nodes[0].Add("my new node 2"); // Add to first node at "root" level of tree

---

Reed Copsey, Jr. - http://reedcopsey.com

Oops - sorry about that. I'm tired today - keep messing up... :S

When you call treeView1.Nodes[strName], you're returning a single node. To add to it's children, you need to refer to it's child nodes .

It should be:

string strname = "ParentNode1";
treeView1.Nodes[strName].Nodes.Add("my new node");

---

Reed Copsey, Jr. - http://reedcopsey.com

Have you added ParentNode1 yet?


This should work:

treeView1.Nodes.Add(strName); // Make sure this node is here, first!

treeView1.Nodes[strName].Nodes.Add("my new node"); // Now you can add children to it

---

Reed Copsey, Jr. - http://reedcopsey.com

Something like;

treeView1.Nodes["MyRoot"].Nodes["ParentNode1"].Nodes.Add("my new node");

Or you could build your own method to 'walk' the tree from a string, i.e

Assume you have a string "MyRoot\ParentNode1"

Write a routine that accepts a string, splits on the character \ then loops through the resulting array looking up each string in the nodes collection of the previous node,e.g something like

		private


 TreeNode GetNodeFromPath(string


 path, TreeView treeView)
		{
			TreeNode retVal = null


;
			TreeNodeCollection children = treeView1.Nodes;

			foreach


 (string


 nodeName in


 path.Split(new


 char


[] { '\\'


 }))
			{
				retVal = children[nodeName];
				if


 (retVal != null


)
					children = retVal.Nodes;
			}

			return


 retVal;
		}

and then call it like this;

			TreeNode node = GetNodeFromPath("MyRoot\\ParentNode1"


, treeView1);
			if


 (node != null


)
				node.Nodes.Add("my new node"


);

Sorry, I don't quite understand the question ? Are you saying you want to select the newly added node ? If so, then this should work;

TreeNodeselectedNode = treeView1.SelectedNode;
selectedNode.Nodes.Add("my new node");
treeView1.SelectedNode = selectedNode.Nodes["my new node"];

Hi,

To do that without using the mouse and using the SelectedNode property you would need to set the SelectedNode property to the correct node first. Either I still don't understand your question, or I don't see why you'd do it that way... you don't need to use the selected node property to add a child, you just have to get a reference to the parent node anyway you can. That's why I posted the code for the GetNodeFromPath method, using that you can find the node by name without having to have the node selected.

Why do you want to use the SelectedNode property ? What is it you are trying to do ?

If you want to add a new node to ParentNode1 without selecting it, you need to 'find it in the tree first', since there can be multiple nodes called 'ParentNode1' in the tree in different branches you can't use just the one node name, you have to use a path, like "MyRoot\ParentNode1". If you want to do that, then again the code I posted before using GetNodeFromPath should work.