Do you mean : hosw to find it's parent ?
2009/12/10 maalek <maaa...@gmail.com>
> Hello
>
> I have problem with my Objects. My object have many props and method,
> one of this is td (screen reprezentation of the object). I observe
> click event to obj.td where I do many things on this object and change
> td (screen reprezentation). My question : how find object where is
> attach clicked td ?
>
> Now I setAttribute to td something like obj_id, when td is clicked
> first I read this attribute from td, find proper object by this id, do
> what to do and finnaly change state of obj.td. This works fine but
> when I have very many obj (like thousand), find object takes many time
> (find object is longer then do what to do).
>
>
> Here is simple example :
>
> // example START
>
> Event.observe(window, 'load', function() {
> onLoad();
> });
>
> var objTrs = [];
> var msg = null;
>
> function onLoad(){
>
> msg = document.createElement("div");
> msg.innerHTML = "Click on cell";
> $(document.body).appendChild(msg);
>
> var table = document.createElement("table");
> var tableBody = document.createElement("tbody");
> table.appendChild(tableBody);
> $(document.body).appendChild(table);
> table.border="1"
>
> for(var i = 0; i < 10; i++){
> var myTr = {};
> myTr.counter = 0;
> myTr.tr = document.createElement("tr");
> myTr.objTds = [];
> objTrs.push(myTr);
> for (var j = 0; j < 10; j++){
> var myTd = {};
> myTd.counter = 0;
> myTd.td = document.createElement("td");
> myTd.td.setAttribute('tr_id',i);
> myTd.td.setAttribute('td_id',j);
> myTd.td.innerHTML = myTr.counter + "_" + myTd.counter;
> myTr.objTds.push(myTd);
> myTr.tr.appendChild(myTd.td);
>
> Event.observe(myTd.td, 'click', function() {
> // find tr object in array
> var tr_id = this.getAttribute("tr_id");
> var myTr = objTrs[tr_id];
> myTr.counter++;
> // find proper td in myTr
> var td_id = this.getAttribute("td_id");
> var myTd = myTr.objTds[td_id];
> myTd.counter++;
> var msgTxt = "you click " + myTr.counter + " times on this TR
> and " + myTd.counter + " on this TD";
> myTd.td.innerHTML = myTr.counter + "_" + myTd.counter;
> msg.innerHTML = msgTxt;
> });
>
> }
> tableBody.appendChild(myTr.tr);
> }
>
> }
>
> // example STOP
>
> Best regards
> maalek
>
> --
>
> You received this message because you are subscribed to the Google Groups
> "Prototype & script.aculo.us" group.
> To post to this group, send email to
> prototype-scriptacul...@googlegroups.com.
> To unsubscribe from this group, send email to
> prototype-scriptaculous+unsubscr...@googlegroups.com<prototype-scriptaculous%2bunsubscr...@googlegroups.com>
> .
> For more options, visit this group at
> http://groups.google.com/group/prototype-scriptaculous?hl=en.
>
>
>
--
You received this message because you are subscribed to the Google Groups
"Prototype & script.aculo.us" group.
To post to this group, send email to prototype-scriptacul...@googlegroups.com.
To unsubscribe from this group, send email to
prototype-scriptaculous+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/prototype-scriptaculous?hl=en.
