请教怎么使TreeNode.Text显示出不同的颜色？

Question

TreeView

Answer 1

解决了，思路是在节点后加一个标签控件，代码如下：        private void Form1_Load(object sender, EventArgs e)
        {            treeView1.AfterExpand += new TreeViewEventHandler(TV1_AfterExpand);
            treeView1.AfterCollapse += new TreeViewEventHandler(TV1_AfterCollapse);
            
            TreeNode tn1 = new TreeNode();
            tn1.Text = "aaa";
            tn1.Name = "aaa";
            treeView1.Nodes.Add(tn1);            TreeNode tn2 = new TreeNode();
            tn2.Text = "bbb";
            tn2.Name = "bbb";
            tn1.Nodes.Add(tn2);            Label lb2 = new Label();
            lb2.ForeColor = System.Drawing.Color.Blue;
            lb2.Text = " (3)";
            lb2.Parent = treeView1;
            tn2.Tag = lb2;
            lb2.Tag = tn2;
           
            TreeNode tn3 = new TreeNode();
            tn3.Text = "ccc";
            tn3.Name = "ccc";
            tn1.Nodes.Add(tn3);
            Label lb3 = new Label();
            lb3.ForeColor = System.Drawing.Color.Blue;
            lb3.Parent = treeView1;
            lb3.Text = " (0)";
            tn3.Tag = lb3;
            lb3.Tag = tn3;            treeView1.SelectedNode = tn2;            zSetLabel(treeView1.Nodes[0], true);
        }        void TV1_AfterCollapse(object sender, TreeViewEventArgs e)
        {
            zSetLabel(e.Node, false);
        }        void TV1_AfterExpand(object sender, TreeViewEventArgs e)
        {
            zSetLabel(e.Node, true);
        }        void zSetLabel(TreeNode ParentNode, bool Visible)
        {
            foreach (TreeNode ChildNode in ParentNode.Nodes)
            {
                Label B = (Label)ChildNode.Tag;
                B.Location = ChildNode.Bounds.Location;
                B.Left += ChildNode.Bounds.Width;
                B.Height = ChildNode.Bounds.Height;
                B.Visible = Visible;
            }
        }

Answer 2

treeView DrawMode = DrawText//DrawNode事件，我是用 | 区分左右不分的，这个逻辑可以自己控制
            string[] strs = e.Node.Text.Split(new char[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
            if (strs.Length > 1 &&(e.Node.Parent == null || e.Node.Parent.IsExpanded))
            {
                Font fontT = _treeCtrls.Font;
                Font font = new Font(fontT.FontFamily, fontT.Size, FontStyle.Bold);
                e.Graphics.DrawString(strs[0], font, Brushes.Black, e.Bounds.Location);
                SizeF strSize = e.Graphics.MeasureString(strs[0], font);
                e.Graphics.DrawString(strs[1], fontT, Brushes.Black, new PointF(e.Bounds.Left + strSize.Width + 3, e.Bounds.Top));
            }
            else
            {
                e.DrawDefault = true;
            }