TreeView 精确查找

1.循环遍历

 private void Treenodefind(TreeNode tn, string findtext)       {               foreach (TreeNode treenode in tn.Nodes)           {               if (treenode.Text.Trim() == findtext)               {                   treeView1.SelectedNode = treenode;                   treeView1.TopNode = treenode;                   break;               }               Treenodefind(treenode, findtext);           }                  }