How do you insert a child node in a TreeView Control in WPF C#?

William Thompson

How do you insert a child node in a TreeView Control in WPF C#?
I have a TreeView control that I have created in XAML in a WPF program using C#.
After adding a couple nodes at the root level, I have written code that loops through the tree structure like so:
            ItemCollection items = treeView1.Items;
            foreach (TreeViewItem n in items)
            {
              ...
            }
Once I find the place in this loop where I want to include a child node, how do I go about inserting a child?

1 Reply

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Crish16y ago

hi

please go through below link

http://www.c-sharpcorner.com/UploadFile/mahesh/WPFTreeView08202008231544PM/WPFTreeView.aspx

Also try,

var items = treeView1.Items;
var item = new TreeViewItem() { Header = "Interesting" };
items.Add(item);
var subitem = new TreeViewItem() {Header = "Sub Item"};
foreach (TreeViewItem n in items)
{
  if (n.Header == "Interesting")
    (n as TreeViewItem).Items.Add(subitem);
}

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