private IEnumerable<TreeNode> FindNodeByValue(TreeNodeCollection nodes, string searchstring) { foreach (TreeNode node in nodes) { if (node.Value.IndexOf(searchstring, StringComparison.CurrentCultureIgnoreCase) >= 0) yield return node; else { foreach (var subNode in FindNodeByValue(node.ChildNodes, searchstring)) yield return subNode; } } } protected void Button1_Click(object sender, EventArgs e) { var query= FindNodeByValue(TreeView1.Nodes, fieldFilterTxtBx.Text); if (query != null) { //TreeView1.Nodes[0].Expand(); //TreeView1.Nodes.Clear(); foreach (TreeNode node in query.ToList()) { TreeView1.Nodes.Add(node); } // TreeNode newnode = new TreeNode("Detail Engineering"); // TreeView1.Nodes.Add(newnode); TreeView1.ExpandAll(); } else { Label1.Text = "No file found"; } }
if (query != null) { //TreeView1.Nodes[0].Expand(); //TreeView1.Nodes.Clear(); foreach (TreeNode node in query.ToList()) { TreeView1.Nodes.Add(node); } TreeView1.Bind(); // TreeNode newnode = new TreeNode("Detail Engineering"); // TreeView1.Nodes.Add(newnode); TreeView1.ExpandAll(); }
var
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