On opening a branch is it possible to close any opened branch of the same level and/or parent. Screen limitations would be enhanced if the previously opened branch could be collapsed.
Any solution
Thanks
TonyW
Your support service is great!!
It is possible. You can try to do it using onOpenStart event handler. This function called
when item is opened/closed. There you can close the last opened item if it not a parent of the item which you are opening.
In order to get a parent item id of a particular item, the getParentId method can be used.
Here is the example how it can be
done:
var lastopened = “”;
tree.attachEvent(“onOpenStart”,function(id,state){
if(state != 1){ /*if the current state is not “opened” (you don’t try close to node) */
if(lastopened !=
“”){
if(!isparent(id,lastopened)) tree.closeItem(lastopened);
}
lastopened =
id;
}
return true
})
function
isparent(id,parent){
if(id!=“0”){
if(tree.getParentId(id)!=
parent){
isparent(tree.getParentId(id),parent)
}
else return
true
}
return
false
}
Please, see tree API and details about this event in the documentation docs/alpha.html and on
our site http://www.dhtmlx.com/docs/products/dhtmlxTree/doc/events.html.