树的节点搜索定位及变色显示

来源：互联网发布：以史为鉴可以知兴替编辑：程序博客网时间：2024/05/18 09:36

#region "节点搜索定位及变色显示"

        private void button5_Click(object sender, EventArgs e)
        {
            treeviewchangeColor("", triStateTreeView1);
            treeviewchangeColor(textBox1.Text, triStateTreeView1);

        }

        private void treeviewchangeColor(string name,TriStateTreeView tri)
        {
            foreach (TreeNode x in tri.Nodes)
            {
                if (x.Text == name)
                {
                    x.ForeColor = Color.Red;
                    // tri.SelectedNode = x;
                    tri.Focus();
                }
                else
                {
                    x.ForeColor = Color.Black;
                    if (FindNode(name,x))
                    {
                        return;
                    }
                }
            }
            tri.ExpandAll();
        }

        private bool FindNode(string name, TreeNode nd)
        {
            if (nd.Nodes.Count > 0)
            {
                foreach (TreeNode x in nd.Nodes)
                {
                    if (x.Text == name)
                    {
                        x.ForeColor = Color.Red;
                        //treeView2.SelectedNode = x;
                        //treeView2.Focus();
                        return true;
                    }
                    else
                    {
                        x.ForeColor = Color.Black;
                        FindNode(name, x);
                    }
                }
                return false;
            }
            else
            {
                return false;
            }
        }

#endregion