CGDevTools Forum

Posted: **07 Jul 2014 13:13**

Hello!

For some tasks it is necessary to know the level of the particular node. Is it possible now? Or, could you add this attribute to the tree node?

Posted: **07 Jul 2014 15:32**

Hi asp,

Please check the attached demo.

We have published the jsGetActiveNode method and added new tree node command "dtnGetLevel" (check comments in demo) in next build.

Best Regards.

Posted: **08 Jul 2014 09:01**

Thank you!

I've understood how to deal with the level when you have an active node. But how to get the level in OnGetChildrenNode event handler if I, for example, don't want to load nodes having the level more then 3.

Posted: **08 Jul 2014 11:46**

Hi asp,

You have two ways to check it:

Using the var on server and inc on GetChildrenNodes event.

Extend the passed node parameters onLazyRead event:

delphi code

procedure TIWForm3.IWAppFormCreate(Sender: TObject);
begin
  IWCGJQDynaTree1.JQDynaTreeOptions.OnLazyRead.Script:= 'function(dtnode){ dtnode.data.nodeLevel = dtnode.getLevel(); }';
end;

procedure TIWForm3.IWCGJQDynaTree1GetChildrenNodes(Sender: TObject; ANodeData: ISuperObject; var AJSon: ISuperObject);
var
  JSonObj: ISuperObject;
  I: Integer;
  nLvl: Integer;
begin
  nLvl:= ANodeData.I['nodeLevel'];
  AJSon:= TSuperObject.Create(stArray);
  for I := 1 to 5 do
  begin
    JSonObj:= SO();
    JSonObj.S['key']:= 'childId_' + IntToStr(i);
    JSonObj.S['title']:= 'Child ' + IntToStr(i);
    JSonObj.B['isLazy']:= True; // load children via ajax
    AJSon.AsArray.Add(JSonObj);
  end;
end;

Best Regards.

Posted: **09 Jul 2014 10:13**

Thank you!

CGDevTools Forum

DynaTree: Node Level

DynaTree: Node Level

Re: DynaTree: Node Level

Re: DynaTree: Node Level

Re: DynaTree: Node Level

Re: DynaTree: Node Level