I have this code:
public void AddNode(string Node)
{
try
{
treeView.Nodes.Add(Node);
treeView.Refresh();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
Very simple as you see, this method gets file path. like C:\Windows\notepad.exe
Now i want the TreeView to show it like FileSystem..
-C:\
+Windows
And if i click the '+' it gets like this:
-C:\
-Windows
notepad.exe
Here is what i get now from sending theses pathes to the method above:
How can i do that it will arrange the nodes?
If I were you, I would split the input string onto substrings, using the string.Split method and then search for the right node to insert the relevant part of a node. I mean, that before adding a node, you should check whether node C:\ and its child node (Windows) exist.
Here is my code:
...
AddString(@"C:\Windows\Notepad.exe");
AddString(@"C:\Windows\TestFolder\test.exe");
AddString(@"C:\Program Files");
AddString(@"C:\Program Files\Microsoft");
AddString(@"C:\test.exe");
...
private void AddString(string name) {
string[] names = name.Split(new char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
TreeNode node = null;
for(int i = 0; i < names.Length; i++) {
TreeNodeCollection nodes = node == null? treeView1.Nodes: node.Nodes;
node = FindNode(nodes, names[i]);
if(node == null)
node = nodes.Add(names[i]);
}
}
private TreeNode FindNode(TreeNodeCollection nodes, string p) {
for(int i = 0; i < nodes.Count; i++)
if(nodes[i].Text.ToLower(CultureInfo.CurrentCulture) == p.ToLower(CultureInfo.CurrentCulture))
return nodes[i];
return null;
}