Recent Questions Tree Extjs Horizontal Menu
Q: I can’t highlight the selected menu item of the current page in the javascript flyout menu?
A: Please, check the following parameter
var pressedItem=-2;
This parameter sets an index of an item that will be highlighted by default.
-2 - the toggle mode is disabled;
-1 - the toggle mode is enabled, but no items highlighted by default;
0,1,2,3,... - index of highlighted item in a top-menu.
The menu has only two states normal and mouseover. We'll try to add the pressed state in the future.
You can set a pressed item using Javascript API:
function dm_ext_setPressedItem (menuInd, submenuInd, itemInd, recursion)
Sets a current pressed item.
menuInd - index of a menu on a page, >= 0.
submenuInd - index of a submenu, >= 0.
itemInd - index of an item, >=0.
recursion = true/false - highlight parent items.
But notice, to use dm_ext_setPressedItem() you should know ID of selected item and subitem.
You can't get this ID after you reload your page.
That is why you should write your own code on PHP.
You can also set the correct:
var pressedItem=1;
parameter on each html page.
Q: Hi there ... a while ago I had asked you what I need to change to prevent exit pops from being activated, but I don't think it's working.
For example, a regular link that I want:
onClick="exit=false"
How do I do it with dhtml vertical menu?
Before, in the "text" box in the "Item Parameters" window, you had me do the following:
<span onClick='exit=false;'>click here</span>
But that doesn't seem to work. Any other suggestions? Thanks very much.
A: I suppose that you should move menuItems from the data file to yourhtml page directly (where you define exit variable).
<script>
menuItenms = [
...
],
</script>
Q: The submenu should look identical to the main menu but it is not allowing this.
Even though parameters are set to 0 it is showing smart scroll and also not showing the sub menus how they should be.
I also notice and error in the templates window view when I am looking at the javascript onmouseover menu.
A: You've set the exact width for your submenus:
var smHeight="21px"; // it is the height of the whole submenu
It is not right.
Try to write:
var smHeight="";
> I also notice and error in the templates window view when I am looking
> at the menu.
Now you have:
var pressedItem="";
It is not correct. Try to set:
var pressedItem="-2";
See the attached example.
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>.
