C# TreeView checkbox 联动打勾

  #region 将树的checkbox选中

        private void setNodeTrue(Node selNode) {

            Node node = selNode.Parent;

            if (node != null) {

                node.CheckState =  CheckState.Checked;

                setNodeTrue(node);

            }

        }

        #endregion

        #region 将树的checkbox选中

        private void setNodeStateTrue(Node selNode)

        {

            if (selNode.CheckBoxVisible)

            {

                selNode.CheckState =  CheckState.Checked;

                foreach (Node node in selNode.Nodes)

                {

                    setNodeStateTrue(node);                }

            }

        }

        #endregion        #region 将树的checkbox取消选中

        private void setNodeStateFalse(Node selNode)

        {

            if (selNode.CheckBoxVisible) {

                selNode.CheckState =  CheckState.Unchecked;

                foreach (Node node in selNode.Nodes)

                {

                    setNodeStateFalse(node);                }

            }

        }

        #endregion        #region 将树的checkbox取消选中

        private void setNodeFalse(Node selNode)

        {

            Node nextNode = selNode.NextNode;

            Node previousNode = selNode.PrevNode;

            Node praNode = selNode.Parent;

            if (praNode != null) {

                while (nextNode != null)

                {

                    if (nextNode.Checked)

                    {

                        return;

                    }

                    nextNode = nextNode.NextNode;

                }

                while (previousNode != null)

                {

                    if (previousNode.Checked)

                    {

                        return;

                    }

                    previousNode = previousNode.PrevNode;

                }

                praNode.CheckState =  CheckState.Unchecked;

                setNodeFalse(praNode);

            }

        }

        #endregion  #region 单击树的checkbox事件

        private void tvDevice_AfterCheck(object sender, AdvTreeCellEventArgs e)

        {

            Node node = tvDevice.SelectedNode;

            if (node.Checked)

            {                setNodeTrue(node);

                setNodeStateTrue(node);

            }

            else {

                setNodeStateFalse(node);

                setNodeFalse(node);

            }

        }

        #endregion 

原文来自 http://hi.baidu.com/jm_li_cn/item/ce4cec163f02932bd0d66dbb