BoldSignEasily embed eSignatures in your .NET applications. Free sandbox with native SDK available.
private void button1_Click(object sender, System.EventArgs e) { //move treenode 3 to treenode 1 int targetIndex = 1; int sourceIndex = 3; TreeNode tn = treeView1.Nodes[sourceIndex]; TreeNode[] tnc = new TreeNode[treeView1.Nodes.Count]; int k = 0; foreach(TreeNode t in treeView1.Nodes) tnc[k++] = t; treeView1.Nodes.Clear(); for(int i = 0; i < k; i++) { if(i == targetIndex) { treeView1.Nodes.Add(tn); } if( !tn.Equals(tnc[i])) { treeView1.Nodes.Add(tnc[i]); } } }