Recent Questions Treeview Javascript
Q: I’d like to know how to populate the navigation bar menu from a database?
A: Please, see the example of .php file.The content of .php file depends on your database structure.
<?php
// The example for PHP/MySQL.
// MySQL database has the table "menuTable" that contains data for menu items.
// The table has the following fields:
// 1. "text" - item text
// 2. "link" - item link
// 3. "icon1" - item icon (normal state)
// 4. "icon2" - item icon (mouseover state)
function getMenuItems()
{
$jsItems = '';
// Select all records from table "menuTable"
$allItems = mysql_query('SELECT * FROM menuTable;');
// Extract items data from database and build Javascript code for menuItems
while ($itemData=mysql_fetch_array($allItems))
{
$jsItems .= '["'.$itemData['text'].'", "'.$itemData['link'].'", "'.$itemData['icon1'].'", "'.$itemData['icon2'].'"],';
}
// Return Javascript code
return $jsItems;
}
?>
<script>
var menuParam1 = value1;
var menuParam2 = value2;
var menuParam2 = value2;
...
var menuItems = [
// Write Javascript code for menu items
echo getMenuItems();
?>
];
</script> Q: I am trying to have the selected top item in the pop up menu remain on the mouseover event after it is selected.
It seemed to be working fine when i was just testing with # as a link
but when i actually linked to different pages it returns to normal.
How do i get this to work?
A: You can find more info here:
http://www.deluxe-menu.com/highlighted-items-sample.html
JavaScript Tree Menu has only two states normal and mouseover.
Try to do the following things:
- delete var pressedItem=1; parameter from your data file
- set correct parameter on each page before you call data file, forexample:
<noscript><a href="http://deluxe-menu.com">Javascript Menu by Deluxe-Menu.com</a></noscript>
<script type="text/javascript"> var dmWorkPath = "menudir/";</script>
<script type="text/javascript" src="menudir/dmenu.js"></script>
<script type="text/javascript"> var pressedItem=3;</script>
...
<script type="text/javascript" src="menudir/data.js"></script>
You can also 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.
Q: Is there a way to specify certian font styles escpecailly a hanging indent on the text of the javascript menu scroll?
A: You should use Individual styles, for example:
var itemStyles = [
["fontStyle=bold 12px Arial,Helvetica", "fontDecoration=none,underline"], // style 0
["fontStyle=normal 12px Arial,Helvetica", "fontDecoration=underline,underline"], // style 1
["fontStyle=normal 14px Arial,Helvetica", "fontDecoration=none,none"], // style 2
];
And assign styles to your items:
var menuItems = [
["1 Item","index.php","","","","_self","0",,,],
["2 Item","","","","","_self","1",,,],
["|Submenu Item","","","","","_self","2",,,],...
Q: Is there a way to make the dhtml pull down menu not reset after a link is clicked.
Now every time I click a link in the tree menu it takes me to the linked page
but all the menus re-expand.
A: When user clicks the link, the browser loads a new page and the script re-create the menu.
If you want to open the needed section automatically on load you can use the following:
1. Save the state to cookies
var tsaveState=0;
2. Use frames
3. Put the special script on each page of site that will open appropriate section:
(dtreet_ext_expandItem)
See more info here:
http://www.deluxe-tree.com/functions-info.html
