WinForm开发中针对TreeView控件改变当前选择节点的字体与颜色

        private void tvCustomerClass_AfterSelect(object sender, TreeViewEventArgs e)
        {         
            if (this.tvCustomerClass.SelectedNode != null)
            {
                theLastNode = tvCustomerClass.SelectedNode;              
            }                   
        }
        
        private void tvCustomerClass_BeforeSelect(object sender, TreeViewCancelEventArgs e)
        {
            e.Node.ForeColor = Color.Blue;
            e.Node.NodeFont = new Font("宋体", 10, FontStyle.Underline|FontStyle.Bold);
            if (theLastNode != null)
            {
                theLastNode.ForeColor = SystemColors.WindowText;
                theLastNode.NodeFont = new Font("宋体", 11, FontStyle.Regular);
            }
        }