在Treeview C＃Winforms中添加新文件夹

Question

I am using Treeview in C# winforms to list all existing images in directory, i also created button event to add New Folder, but now problem is when i add new node its created but in actual no any folder created on actual drive/directory, so please help me out. Here is my Code..

private void btnAddFolder_Click(object sender, EventArgs e)
{
var newNode = treeView1.SelectedNode.Nodes.Add("New Folder");
newNode.BeginEdit();
}

Answer 1

You don't have any code for creating directories there - just for adding the node to your tree.

I am assuming you have some kind of path information on each node (perhaps in the 'Tag' data). If that's the case, you need to combine this data with a call to CreateDirectory, as follows:

Directory.CreateDirectory(Path.Combine(treeView1.SelectedNode.Tag as string, "New Folder"));

This will create a directory which is represented by the combination of the path of the current node and the string 'New Folder'.

The TreeNode.Tag property is described here .

The Directory.CreateDirectory method is described here .

The Path.Combine method is described here here .