C# 遍历TreeView所有节点

public void PrintTreeViewNode(TreeNodeCollection node)
{
foreach (TreeNode n in node)
{
Response.Write(n.Text+",");
PrintTreeViewNode(n.ChildNodes);
}
}

调用 PrintTreeViewNode(TreeView1.Nodes);

//////////////////////////////////////////////////////////////////
private void button1_Click(object sender, EventArgs e)

{

label1.Text = string.Empty;

#region 递归

//1.获取TreeView的所有根节点

foreach (TreeNode tn in treeView1.Nodes)

{

DiGui(tn);

}

#endregion

}

private void DiGui(TreeNode tn)

{

//1.将当前节点显示到lable上

label1.Text += "aaa" +
" " + tn.Text
+ "\r\n";

foreach (TreeNode tnSub in tn.Nodes)

{

DiGui(tnSub);

}

}