asked on

Adding a Node to a TreeNode with full name.

Hi,

I've got a few Strings as:

Dir1\Dir2\File1
Dir1\Dir2\File2
Dir1\File1
Dir2\File1

etc.

What I'm wanting to do is create TreeNodes from these Strings, so that I end up with something like:

Root
	Dir1
		Dir2
			File1
			File2
		File1
	Dir2
		File1

Open in new window

Without having to manually parse each string, is there a method to do this?

Thanks,
Uni

nipunu

First drag drop one TreeView control on the form

using System.IO;
private void Form1_Load(object sender, EventArgs e)
{
TreeNode rootnode = new TreeNode(@"C:\");
treeView1.Nodes.Add(rootnode);
FillChildNodes(rootnode);
treeView1.Nodes[0].Expand();
}
void FillChildNodes(TreeNode node)
{
try
{
DirectoryInfo dirs = new DirectoryInfo(node.FullPath);
foreach (DirectoryInfo dir in dirs.GetDirectories())
{
TreeNode newnode = new TreeNode(dir.Name);
node.Nodes.Add(newnode);
newnode.Nodes.Add("*");
}
}
catch(Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
private void treeView1_BeforeExpand(object sender, TreeViewCancelEventArgs e)
{
if (e.Node.Nodes[0].Text == "*")
{
e.Node.Nodes.Clear();
FillChildNodes(e.Node);
}
}

Above code is for windows forms following is for web forms

Another Link - http://www.dotnetspider.com/resources/29711-Displaying-Directories-structure-using-Tree-View.aspx

ASKER CERTIFIED SOLUTION

Mike Tomlinson

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Unimatrix_001

ASKER

Thank you - not quite sure why my search didn't find that. :S

Unimatrix_001

ASKER

Oh man - the difference between the nice elegant code in the link you posted and my attempts are massive. :(

Mike Tomlinson

Glad it was helpful...just keep coding and it will come together eventually. =)