Loop through selected nodes of a treeview control

foreach (TreeNode node in tvBusinessUnit.CheckedNodes)
{
lblSelectedBusinessUnit.Visible = true;
if (tvBusinessUnit.CheckedNodes.Count > 1)
{
lblSelectedBusinessUnit.InnerText += string.Format(" {0}, ", node.Text);
}
else
{
lblSelectedBusinessUnit.InnerText = string.Format(" {0}", node.Text);
}
if (node.Depth == 2)
{
string nodeVal = node.Text;
numselect = numselect + 1;
}
}