Recent Questions Yahoo Yui Dynamic Tree Highlight
Q: Hi, I need to know if it is possible to accomplish the following functionalities with your tree-menu library.
1. I need to have two or more trees in the same page
2. I need to have a checkBox in each node and through a JavaScript function be able to add the selected nodes into another tree.
3. I need to eliminate the nodes that has check=true
4. I need to populate on-demand the tree using AJAX
5. I need to implement drag&drop through the use of the mouse events on the tree nodes
6. How would the tree behave with 10000 nodes??
7. I need to have a tree within another element that uses scroll
such as a DIV or SPAN (fixed area). When collapsed or expanded, the area should remain its original size.
A: 1. You can add any number of the menus on the one page.
2, 3, 5. Yes, you can do it. But you should create your own server-side script (for example, php) that will do it. The menu doesn't support such a feature.
4. Unfortunately, you can't use the AJAX-like technology in the Javascript/DHTML Tree such as in JavaScript Tree Menu.
6. It is possible that the loading speed can be lower if the menu is very large. But it doesn't take so much time.
Yes, you can notice some delay in IE, but in over browsers it works better.
Javascript/DHTML Tree works fast, but 10000 is a large value. Please, try atrial version of Javascript/DHTML Tree.
I tried to create large menus on my machine: P4 3GHz, 512RAM WinXP SP2
It takes:
- 1000 items ~ 10 sec
- 2000 items ~ 40 sec
7. You can paste Javascript/DHTML Tree into the <table> or <div>.
Q: When I open my site in Internet Explorer 6.0 the main drop menu code shows up nicely but the drop-down sub-menus are separated. The drop menu code work very nicely in a Firefox browser but not in IE.
A: There are some problems also with your css.The problem is that the drop menu code can't get css properties of the object if they are described in separate .css block (or file).
In other words, you can't get the value of "position" attribute of the object if the object doesn't have this property within inline style(style="position:relative"). To get the value you should move .css style into style="" attribute.
Please, try to add your
css file -> inline css, for example:
You should add style="position:relative;"
to the
<DIV id="right">
So, you'll have:
<DIV id=right style="POSITION: relative;">
Check that.
Q: I have the menu installed over a Flash movie. In IE the menu flickers and in Firefox it disappears under Flash movie. Is there a fix for this that allows me to have menu lay pover Flash movie?
A: See more info here:
http://deluxe-menu.com/objects-overlapping-sample.html
> In IE the menu flickers
You can have such effect in IE7. You should click on the flash. Yourmenu will stop flicker.
Q: Do you have any tips on making the drop down menus load faster? My pages seem a little slower now that I have 2 Javascript menus loading per page.
A: Check that you have the following parameter set to 0:
var dm_writeAll=0;
