Check branch only when CTRL key is pressed?

Suite and Optimus Suite 5
#1

I would like to set the subChecked only when the CTRL key is checked, is this possible?



So far I can see that I can set the SubChecked as true or false but not dependent on Keyboard button press.



Thanks



John

#2

If you are using 3-state tree, it not possible, because it doesn’t allow checking parent and having some child items unchecked in the same time.
If you are using 2-state tree, it can be done with a bit of customization

in dhtmlxtree.js

if (!this.treeNod.callEvent(“onBeforeCheck”,[this.parentObject.id,this.parentObject.checkstate]))

can be replaced with

if (!this.treeNod.callEvent(“onBeforeCheck”,[this.parentObject.id,this.parentObject.checkstate,(e||event)]))


after that you will be able to use

tree.attachEvent(“onBeforeCheck”,function(id,check,e){
if (e.ctrlKey) exec_sub_check_logic();
return true;
})


#3


I have made the change to the js file and added this script to the page:



tree.attachEvent(“onBeforeCheck”,function(id,state,e){
  if (e.ctrlKey) doOnCheck(id,state);
  return true;
 })
  
 function doOnCheck(nodeId,state){
  if (state == 1) {
   tree.setSubChecked(nodeId,true);
   } else {
   tree.setSubChecked(nodeId,false);
  }
  }



However, when I check the parent box while it is unchecked (with CTRL key pressed) it just checks the parent and not the children. When I then press the parent again (with CTRL key pressed), it unchecks the parent and checks the children.



Any ideas?



Thanks, John

#4


Just changed the above to use the onCheck instead of onBeforeCheck and its working fine.



John