How do I add node children to a TreeView using C# code?

Question

So I have a TreeView setup with a few nodes in it. I have a string list with a few strings in it, and I want to add the entire list into a child of a specific node in the TreeView using C# code (possibly a foreach loop?). How might I do that?

Nick · Accepted Answer · 2011-07-30 00:38:31Z

2

This will add three nodes to the child node "node00" of node "node0"

List<string> strings = new List<string>() { "string1", "string2", "string3" };

foreach (string s in strings)
    treeView1.Nodes["node0"].Nodes["node00"].Nodes.Add(s, s);

enter image description here

Note that you can specify the nodes by name (key) or by index

answered Jul 30, 2011 at 0:38

Nick

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Branko Dimitrijevic · Accepted Answer · 2011-07-30 00:41:11Z

1

Are you referring to the WPF TreeView or WinForms TreeView?

For WPF, the approach that worked best for me so far is to create a viewmodel and bind it to TreeView using HierarchicalDataTemplate. Basic idea is explained at http://www.codeproject.com/KB/WPF/TreeViewWithViewModel.aspx.

WinForms TreeView can be manipulated directly through TreeView.Nodes, TreeNode.Nodes and such. I recommend against trying to do something similar with WPF TreeView...

answered Jul 30, 2011 at 0:41

Branko Dimitrijevic

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