dongdong

采用contexMenu,不要使用TreeAfterCheck事件
        private void CheckedParentNode(TreeNode SeleckNode)
        {
            if (SeleckNode.Parent != null)
            {
                int checkedcount = 0;
                foreach (TreeNode subnode in SeleckNode.Parent.Nodes)
                {
                    if (subnode.Checked)
                    {
                        checkedcount++;
                    }
                }
                SeleckNode.Parent.Checked=checkedcount>0?true:false;
                CheckedParentNode(SeleckNode.Parent);
            }          
        }

        private void CheckSubNode(TreeNode SeleckNode)
        {
            foreach (TreeNode currentNode in SeleckNode.Nodes)
            {
                currentNode.Checked = SeleckNode.Checked;
                CheckSubNode(currentNode);
            }
        }

        private void SelectNode_OK_Cancel(TreeNode SelectNode,bool bolCheck)
        {
            if (SelectNode==null)
            {
                foreach (TreeNode node in treeView1.Nodes)
                {
                    node.Checked = bolCheck;
                    CheckSubNode(node);
                }
            }
            else
            {
                SelectNode.Checked = bolCheck;
                CheckedParentNode(SelectNode);
                CheckSubNode(SelectNode);
            }
        }

        private void contextMenuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {
            switch (e.ClickedItem.Name)
            {
                case "mnuOK":
                    SelectNode_OK_Cancel(treeView1.SelectedNode,true);
                    break;
                case "mnuCancel":
                    SelectNode_OK_Cancel(treeView1.SelectedNode,false);
                    break;
                case "mnuFullOK":
                    SelectNode_OK_Cancel(null, true);
                    break;
                case "mnuFullCancel":
                    SelectNode_OK_Cancel(null, false);
                    break;
                default:
                    break;
            }
            UpdateMenuStatus();
               
        }