TreeList复选框选中节点

1、 查看文章 TreeList 复选框选中节点2009-06-04 17:321 /treeLArea    :   TreeList; 2 /imglChecked :   ImageList;3 / 4 /5 6 /指定StateImageList7 this.treelArea.StateImageList = this.imglChecked;8 9 /treelArea的GetStateImage事件处理程序10 private void treelArea_GetStateImage(objec

2、t sender, DevExpress.XtraTreeList.GetStateImageEventArgs e)11 12     try13      14           CheckState checkState = (CheckState)e.Node.GetValue("checkState");15        &

3、#160;  e.NodeImageIndex = (checkState = CheckState.Unchecked) ? 0 : (checkState = CheckState.Checked ? 1 : 2);16       17      catch(Exception)18      19 20 21 22 23 24 /鼠标单击事件处理25 private void treelArea_MouseDown(object send

4、er, MouseEventArgs e)26 27      if (e.Button=MouseButtons.Left)28       29           TreeListHitInfo hitInfo = (sender as TreeList).CalcHitInfo(new Point(e.X,e.Y);30       

5、60;  if (hitInfo.HitInfoType=HitInfoType.StateImage)31           32               SetCheckValue(hitInfo.Node);           

6、0;      33           34       35 36 37 38 /设置节点状态39     private void SetCheckValue(TreeListNode node)40       41        

7、   CheckState checkState = CheckState.Unchecked;42          if (CheckState)node.GetValue("checkState")=CheckState.Unchecked|(CheckState)node.GetValue("checkState")=CheckState.Indeterminate)43      

8、60;    44               checkState = CheckState.Checked;45           46           node.TreeList.FocusedNode = node;47   

9、        node.TreeList.BeginUpdate();48           node.SetValue("checkState",checkState);49           SetParentCheckState(node,checkState);50     

10、      SetchildCheckState(node, checkState);51           node.TreeList.EndUpdate();     52       53 54 /递归设置父节点55      private void SetParentCheckState(Tree

11、ListNode node,CheckState checkState)56       57           TreeListNode parentNode = node.ParentNode;58          bool style = false;59         

12、60;if (parentNode!=null)60                        61              foreach (TreeListNode   n in parentNode.Nodes)62

13、              63                  if (!checkState.Equals(CheckState)n.GetValue("checkState")64        

14、60;          65                       style = true;66                 

15、     break;67                   68               69             &

16、#160; parentNode.SetValue("checkState", style ? CheckState.Indeterminate : checkState);70               SetParentCheckState(parentNode,checkState);71           72    

17、;  73       74 75 /递归设置子节点76      private void SetchildCheckState(TreeListNode node, CheckState checkState)77       78          if (node.HasChildren)79    

18、       80              foreach (TreeListNode n in node.Nodes)81               82                   n.SetValue("checkState",checkState);83                   SetchildCheckState(n,checkState);84          &