Recent Questions
Q: I am having some difficulty dynamically adding items to a tree javascript and menu.
I have a menu with one "root" item. I see the use of the "+" symbol within the item name. I do not see any documentation regarding this symbol, only "|". Can you explain?
If I have one menu with this one "root" node, how would I add an subitem to this root node?
Here is my code so far, but the inserted items appear to be at the same level as the root node.
var rootItem = dtreet_ext_getItemIDByIndex ( 0,0 );
var menuItem = new Array(10);
for ( var i = 0; i < producers.length; i++ )
{
var producer = producers[ i ];
menuItem[0] = producer.name;
dtreet_ext_insertItem ( 0, 0, i + 1, menuItem );
A: See dtreet_ext_insertItem () function has the following parameters:
function dtreet_ext_insertItem (menuInd, parentItemID, itemInd, itemParams)
Creates a new item and inserts it into a specified position.
menuInd - index of a javascript and menu on a page, >= 0.
parentItemID - ID property of an item.<, >= 0.
itemInd - index of a new item within the javascript and menu, >= 0.
itemParams - item parameters.
Notice that parentItemID is the Id property of the parent item (notindex). If you want to add top items you should set parentItemID=0.
itemInd - you should use this parameter if you want to add item in thespecific place, for example set itemInd=5 if you want to add itembefore the existing item with itemInd=5.
If you set itemInd=null the new item will be added at the end of this submenu and its index will be added automatically.
Q: Is there any way to have the browser reset the horizontal tree view to allcollapsed each time the browser is reopened?
A: You should set the following parameter in that case:
var tsaveState=0;Q: I have been trying for months to find an answer to my submenu problem using your FAQ and Recent Questions.
The only thing that comes close to an answer is from one of your Recent Questions below, but I don't understand the answer. Will you please give me specific code or info to fix? Please refer to my frameset code and data.js info, which I've provided further down this message.
I am using cross frame menu dropdown. I have three frames: Top, Left and main (middle).
I am using the script and data from your sample file, it works fine. Only problem is submenu is offset to the right. It does not show up exactly down below the top javascript hide menu.
A: Yes, I suppose that the reason is in your frame structure. For examplenow you have:
top -------------------
**MENU**
left--|main------------
|
| **submenus**
|
Try to add additional frame in your top frame with the same width asyour left frame has:
l-top-|right-top-----------------
| **MENU**
left--|main----------------------
|
| **submenus**
|
Q: Typically in order to generate a menu with multiple layers I’d put a pipe character in front of the menu text.. For example:
["|Page Admin","/admin/handoutadmin.php", , , , "_new", , , , ],
["||Student Pages","/admin/handoutadmin.php?type=1", , , , "_new", , , , ],
["||Teacher Pages","/admin/handoutadmin.php?type=2", , , , "_new", , , , ],
["||Family Letters","/admin/handoutadmin.php?type=4", , , , "_new", , , , ],
["||Transparencies","/admin/handoutadmin.php?type=3", , , , "_new", , , , ],
However, when I try to do it with dm_ext_addItem it actually SHOWS the pipe character and doesn’t create any menu levels at all.
For example:
dm_ext_addItem(0, 0, ["Add a Handout to this Lesson", "", "", "", "", "", ""]);
dm_ext_addItem(0, 0, ["|Student Page","/admin/handoutadmin.php?type=$type", "", "", "", "_new", ""]);
dm_ext_addItem(0, 0, ["|Teacher Page","/admin/handoutadmin.php?type=$type", "", "", "", "_new", ""]);
How can I generate multiple levels of the menu with javascript?
A: I suppose that your code is not valid
dm_ext_addItem(0, 0, ["|Teacher Page", "/admin/handoutadmin.php?type=$type", "", "", "", "_new", ""]);
Try to write it in the following way:
dm_ext_addItem(0, 0, ["|Teacher Page", "/admin/handoutadmin.php?type=", "", "", "", "_new", ""]);