Recent Questions Criar Menu Treeview Asp Net Mvc
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: I downloaded the trial version and gave it a run.
I cannot get thebackground color of the menu to change – it this a limitation of the trail version or a bug?
A: No, it is not the limitation.
Please, set these parameters:
var menuBackColor="#000000";
var menuBorderColor="#000000";
var itemBackColor=["#000000","#000000"];
var itemBorderColor=["#000000","#000000"];
Q: Can I use just one data.js in one folder that all the pages with a dhtml popup menu point to?
A: If you don't want to create your menu on each page you can use aserver-side script
(php, asp, vb, etc.) to generate html pages fromtemplates on your server.
You can use cross frame menu.
It allows you to build full-featured menus on the pagesthat use frame-based structure.
And it's not necessary to insert any code into all the pages -just specify the additional
parameters of the menu and initialize it.
To install the menu in a cross-frame mode, see more info here:
http://www.deluxe-menu.com/cross-frame-mode-sample.html
