Recent Questions
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: Compliments on your product, I particularly enjoy the complete set of gui and java, that allows for the quick changes.
After a couple of months of using the trial, I have now purchased it and installed the license.
My question however regards the performance of the menu. Using firebug I note that my deluxe menu .js are the performance bottlenecks, It appears as if they are not being cached and it appears that collecting them is taking longer then the other .js files. What can I do to optimize the load time of the javascript multi level menu and prevent, reloading it from the server with every page reload. The apache has set the expiry correct I believe, as I understand from the header.
A: You can try to use AJAX technology.
AJAX-like technology: data for submenus can be loaded "on-the-fly" from the server.
New parameter:
var tajax = 0/1; - disables/enables AJAX-like support
Current syntax for item parameters ( var tmenuItems):
[text, link, iconNormal, iconOver, iconExpanded, tip, target, itemStyleInd, itemXPStyleInd, jsFileName]
Where jsFileName - .js filename on the server with submenu items ( var tmenuItems).
Q: Currently let us know how can we align the text at the top dropdown menu script so that the text will appear above the horizontal line.
Kindly help us to solve this problem as soon as possible.
A: Unfortunately you cannot set vertical align for items text.But you can try to write your item text in the following way:
var menuItems = [
["Home<br> ","/index.asp?pgid=1", , , , , "0", , , ],
["About Us<br> ","/index.asp?pgid=2", , , , , "0", , , ],
["Company News<br> ","/index.asp?pgid=3", , , , , "0", , , ],
["Services<br> ","/index.asp?pgid=4", , , , , "0", , , ],
["|Custom Publishing","/index.asp?pgid=6", , , , , , , ,],
["|On Product Publishing","/index.asp?pgid=7", , , , , , , , ],
["|Investment","/index.asp?pgid=10", , , , , , , , ],
["Contact Us<br> ","/index.asp?pgid=5", , , , , "0", ,, ],
];
Q: Is it possible to make on top of the javascript expandable tree 2 extra buttons:
* Expand all
* Collapse all
Which command do I use???
A: Tree Menu doesn't have such a feature now.
You can write your own function based on the following API functions:
function dtreet_ext_showItem (itemID, visibility)
function dtreet_ext_expandItem (itemID, expand)