access and modify a certain node in a tree view

[mbh1]

hi,
ive created a certain tree view, which i want to modify (in run time)
on a certain button click.
how can i change a certain node label name and how can i change its image (assume i have images in a image list)

thanks!

[tlhintoq]

Assuming your tree control is named "EventTree" this is how you make a new node

            TreeNode mainNode = new TreeNode();
            mainNode.Name = "mainNode";
            mainNode.Text = DateTime.Now.ToShortDateString();
            EventTree.Nodes.Add(mainNode);

To change an existing node:
Make a new node
Find the old node
Set the old node to the new node you just made

[mbh1]

how can i find the old one?
every node has it own index?
suppose i want to reach a certain node (a certain index) how can i do it?
thanks

[tlhintoq]

Read up on the TreeView control. The experiment a little: Its the best way to learn.

A common technique is to just check each node recursively to see if it is the text you are looking for. HINT: foreach(TreeNod e tn in MyTreeView.Node s)

Visual Studio has a built in search feature under the 'Help' menu that comes in handy for finding this stuff on MSDN. And if that is too dry to read, Google will show you a lot of other Tutorials and How-To's.