//// NodeId: id, NodeInfo: nodeInfo, XmlUrl: temp.xmlUrl public ActionResult OperateTreeNode(string modeType, string _modeType, string nodeId, string nodeInfo, string xmlUrl) { using (RRDLEntities db = new RRDLEntities()) { Tree tree = new Tree(); TreeNode treeNode = null; switch (modeType) { case "rename": string id = nodeId; string name = nodeInfo; treeNode = tree.GetTreeNodeById(Int32.Parse(id)); treeNode.Title = name; tree.UpdateTreeNode(treeNode); returnStr = "ok&" + treeNode.ParentId; break; case "delete": returnStr = DeleteNode(_modeType, nodeId, xmlUrl); break; case "insert": //List<NodeInfo> nodeList = this.GetListFromJson(nodeInfo); //returnStr = this.InserNode(_modeType, nodeId, xmlUrl, nodeList); //bool flag = true; Tree tree2 = new Tree(db); List<TreeNode> list = tree2.GetTreeNodeChild(Int32.Parse(nodeId)); //for (int i = 0; i < list.Count;i++ ) //{ // if(list[i].Ariticle != null){ // flag = false; // } //} //if (flag) //{ treeNode = new TreeNode(Int32.Parse(nodeId), "新建节点"); tree.AddTreeNode(treeNode); returnStr = "ok"; //} //else { // returnStr = "该节点下存在文章,不能添加文件夹!"; //} break; } return Content(returnStr); } }
//The Function Bllew is Added By ZHAOs ,2013年11月14日10:02:13,used to Delete A TreeNode in 目录树管理 public string DeleteNode(string _modeType, string nodeId, string xmlUrl) { // _modeType = "deleteFolder" ,modeId = "6" ,xmlUrl = "" 传入的参数大致形式如此 Tree tree = new Tree(); TreeNode treeNode = tree.GetTreeNodeById(Convert.ToInt32(nodeId)); string returnStr = ""; /* 如果这个节点是叶子节点 如果是空文件夹 --文件夹(ariticleID为空且isLeaf属性为True),为空文件夹 ===> 可删除 如果是知识 --不能删除知识 (此时 ariticleID属性不为NULL 且 idLeaf属性为 True即是) 如果这个节点不是叶子节点(即非空文件夹,里面可能有知识或者 为空不为空的 文件夹)(ariticleID为空且isLeaf属性为false)====> 不能删除 PS:但是这里不显示知识,所以只可能有 叶子节点文件夹 和 非叶子节点文件夹。 * 叶子节点文件夹内部一定没有知识,可以直接删除 ===>有知识的情况 以后版本考虑 * 非叶子节点文件夹内容一定有文件夹或知识,不能删除。 * 逻辑较简单。 * 只是只能从叶子节点删起 * PS:如果一个父节点其下的所有子节点都被删除,则该父节点的IsLeaf属性变为True */ if (treeNode.IsLeaf == true) { //如果是根目录 if (treeNode.ParentId == null) { returnStr = "根目录不可删除!"; } else {//若果其父节点下只有这一个子节点,则删除此子节点并把父节点isLeaf属性设为True TreeNode parentNode = tree.GetTreeNodeById(Convert.ToInt32(treeNode.ParentId)); List<TreeNode> parentChildList = tree.GetTreeNodeChild(Convert.ToInt32(treeNode.ParentId)); if (parentChildList.Count == 1) { parentNode.IsLeaf = true; } tree.UpdateTreeNode(parentNode);//改变父节点isLeaf属性 tree.Drop(treeNode);//删除子节点 returnStr = "ok"; } } else { returnStr = "该节点下存在子文件夹或知识,不能删除!"; } return returnStr; }