TreeList 使用（13.2）

1.拖拽

   1.1 设置属性：this.treeList1.OptionsBehavior.DragNodes = true;

                      this.treeList1.OptionsBehavior.ShowEditorOnMouseUp = true;
                      this.treeList1.OptionsBehavior.CloseEditorOnLostFocus = false;
                      this.treeList1.OptionsBehavior.KeepSelectedOnClick = false;
                      this.treeList1.OptionsBehavior.SmartMouseHover = false;
                      this.treeList1.OptionsSelection.MultiSelect = true;

   1.2 控制拖动是否生效,用 treeList1_DragDrop事件中 e.Effect = DragDropEffects.None;

           //获取当前拖拽的节点

           var dragNode = e.Data.GetData(typeof(TreeListNode)) as TreeListNode;

          //拖拽多个节点

           目前只能拖动一行！！！！！！！！

          //e.keyState取值

 private void treeList1_DragDrop(object sender, DragEventArgs e)
        {
            var dragNode = e.Data.GetData(typeof(TreeListNode)) as TreeListNode;
            var curNode = treeList1.GetDataRecordByNode(dragNode) as DataEntity;
            if (e.KeyState == 8)
            {
                //按ctrl
                TreeListHitInfo hi = treeList1.CalcHitInfo(treeList1.PointToClient(new Point(e.X, e.Y)));
                if (dragNode != null)
                {
                    TreeListNode node = hi.Node;
                    if (hi.HitInfoType == HitInfoType.Empty || node != null)
                    {
                        CopyNode(dragNode,node);
                    }
                }
                e.Effect = DragDropEffects.None;
                return;
            }
            if (e.KeyState != 8 && !_subjectOperationManager.IsAllowedEditCell(curNode, "ParentID"))
            {
                e.Effect = DragDropEffects.None;
                return;
            }
        }

        private void CopyNode(TreeListNode copyNode, TreeListNode parentNode)
        {//递归copy子节点
            var copyNodeData = treeList1.GetDataRecordByNode(copyNode) as DataEntity;
            if (copyNode != null)
            {
                DataEntitynewNodeData = new DataEntity();
                var newNode = treeList1.AppendNode(newNodeData, parentNode.Id);
                treeList1.MakeNodeVisible(newNode);
                //给新节点绑定数据
                ResetNode(newNode, copyNodeData);
                foreach(TreeListNode childNode in copyNode.Nodes)
                {
                    CopyNode(childNode, newNode);
                }
            }
        }

 

  1.3 控制拖动鼠标效果：

       private void treeList1_DragOver(object sender, DragEventArgs e)
        {
            TreeListHitInfo hi = treeList1.CalcHitInfo(treeList1.PointToClient(new Point(e.X, e.Y)));
            TreeListNode node = e.Data.GetData(typeof(TreeListNode)) as TreeListNode;
            if (node == null)
            {
                if (hi.HitInfoType == HitInfoType.Empty || hi.Node != null)
                    e.Effect = DragDropEffects.Copy;
                else
                    e.Effect = DragDropEffects.None;
            }
        }

private void ResetNodeData(TreeListNode node,DataEntitynodeData)
        {
            treeList1.BeginUpdate();
            DataEntityoNewNodeData = treeList1.GetDataRecordByNode(node) as DataEntity;
            _subjectOperationManager.CopyValue(nodeData, oNewNodeData);
            treeList1.EndUpdate();
        }

2.ctrl +拖拽

  2.1 设置属性：this.treeList1.OptionsBehavior.CanCloneNodesOnDrop = true;

  2.2 devExpress V13.2版本的自带的ctrl+拖拽的赋值功能，可以赋值，但修改赋值后的节点数据会喝原先数据一起发生改变。

3.遍历数据：

  public List<DataEntity> GetTreeData()
        {
            List<DataEntity> lstTreeData = new List<DataEntity>();
            foreach(TreeListNode  node in treeList1.Nodes)
            {
                GetChieldNodeData(node, lstTreeData);
            }
            return lstTreeData;
        }

        private void GetChieldNodeData(TreeListNode node, List<DataEntity> lstTreeData)
        {
            DataEntitynodeData = treeList1.GetDataRecordByNode(node) as DataEntity;
            lstTreeData.Add(nodeData);
            foreach (TreeListNode childNode in node.Nodes)
            {
                GetChieldNodeData(childNode, lstTreeData);
            }
            
        }

4.节点数据编辑：

   添加节点: 只能AppendNode 添加到最后，再通过SetNodeIndex()改变节点位置；

                treeList1.MoveNode(node, parentNode.ParentNode);
                 treeList1.SetNodeIndex(node, index); 

  列弹出框选择：

                  1. 列的ColumnEditor 选 PopupContainerEdit

                  2. 在界面添加控件 popupContainerControl，在popupContainerControl中添加 treeList

                  3. 绑定： repositoryItemPopupContainerEdit1.PopupControl = popupContainerControl1;

                  4. treeList 双击事件选中数据：

　　　　　

private void treeList3_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            try
            {
                TreeListHitInfo _hitInfo = treeList3.CalcHitInfo(e.Location);
                TreeListNode CurrentNode = _hitInfo.Node;
                if (CurrentNode != null)
                {
                    DataEntity nodeData = treeList3.GetDataRecordByNode(CurrentNode) as DataEntity ;
                    ResetNode(nodeData);
                    ClosePopup();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

 

                  5.弹出框的关闭：

                          void ClosePopup()
        　　　　　　{
            　　　　　　if (popupContainerControl1.OwnerEdit != null)
                　　　　　　popupContainerControl1.OwnerEdit.ClosePopup();
        　　　　　　}

5. 选中

       不能单元格多选。

6. 数据筛选：

            treeList1.OptionsFilter.FilterMode = FilterMode.Smart;

　　 　　this.treeList1.OptionsBehavior.EnableFiltering = true;

 　　　　this.treeList1.OptionsFind.AllowFindPanel = true;
            this.treeList1.OptionsFind.AlwaysVisible = true;
            this.treeList1.OptionsFind.ClearFindOnClose = false;