// the save button
public void btnSave_click(object sender, EventArgs e)
{
TreeNode foundNode = myTree.findNode(int.Parse(txtKey.Text));
if (foundNode != null)
{
DisplayAlert("node Saved", foundNode.ToString(), "Okay");
saveList.addRight(foundNode);
lblSaveList.Text = saveList.getData().ToString();
}
else
{
DisplayAlert("cant save", "no node found", "Okay");
}
}
