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Author: Subject: Force folder icon for "empty" folders?
jbowers
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Posts: 3
Registered: 8/16/2004
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posted on 8/23/2004 at 03:28 PM Reply With Quote
Force folder icon for "empty" folders?


I am generating the Tree Menu from hierarchical records in a database. Each record has both a unique ID and a "parent" field that refers to the ID of its parent. I have also created a third field called "is_folder" that can have one of three values: 2=tree root, 1=folder, 0=document/page. I created this field because I am using it with a three option IF,THEN,ELSE statement in the tree/items.asp file to control the HREF action when a user clicks on a branch or leaf from the menu. (When user clicks on a page, I want to display the page. When user clicks on a folder, I want it to list the folder contents. When user clicks on the root, I want it to display the home page.)

Anyway, here's my dilemma... If I create a new "folder" that is either under the root, or under another folder, it gets a "page" icon until I create some documents under it. I assume this is because the applet sees this as a child until another record lists it as a parent, correct?

How can I get the applet to assign icons based upon my "is_folder" field value, rather than automatically by whether or not there are any child records below it?

If seeing my modified code will help, let me know and I'll post it.

Thanks,
Jeff
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tigra
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posted on 8/23/2004 at 06:49 PM Reply With Quote

in Tigra Tree Menu PRO with item scope settings you can assign icons per item (see tigra tree menu pro documentation). With this feature you can assign node icons to the item tree considers leaf.

To optimize the size of the structure you may want to create item scope templates for different types of items and reference them in hierarchy:

var folder_settings = { ... params here ..};
var document_settings = { ... params here ..};

then in hierarchy:

['my folder 1', 'some_url.html', folder_settings],
['my folder 2', 'some_url2.html', folder_settings],
['my document 1', 'some_url2.html', document_settings]

etc.
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jbowers
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posted on 9/9/2004 at 12:31 AM Reply With Quote

I've been trying this for several days now, but just can't figure it out.

Where would I define these custom parameters? In the items.asp file? Or in the tree_tpl.js file?

My tree is being dynamically generated from a database, and I'd like the value of my "is_folder" field to dictate the icon that appears on the tree.

If "is_folder" = 2, then this is the tree root
If "is_folder" = 1, then this is a folder
If "is_folder" = 0, then this is a page

Does that make sense?

Any help would be GREATLY appreciated!
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Cygnus
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posted on 9/30/2005 at 12:48 PM Reply With Quote

I had the same need (to switch icons based on what was in the database) and this worked for me:

Define the icon definitions as Javascript variables in the tree_tpl.js file. In my case, I only wanted to switch between using the folder icons and page icons (for each additional set of icons, define another variable):

var FOLDER_SETTINGS = {'i0':'icons/folder.gif',...'i76':'icons/folder.gif'};
var DOCUMENT_SETTINGS = {'i0':'icons/page.gif',...'i76':'icons/page.gif'};

When you generate your TREE_ITMS file, have it put the variable names FOLDER_SETTINGS and DOCUMENT_SETTINGS where you'd normally put the {'i0':'icons/folder.gif',...'i76':'icons/folder.gif'} strings:

['my folder 1', 'some_url.html', FOLDER_SETTINGS],
['my folder 2', 'some_url2.html', FOLDER_SETTINGS],
['my document 1', 'some_url2.html', DOCUMENT_SETTINGS]

Then, to make the new variables available to the tree, pass them as parameters when you instantiate the tree:

<SCRIPT LANGUAGE='JavaScript'>new tree (TREE_ITEMS, TREE_TPL, FOLDER_SETTINGS, DOCUMENT_SETTINGS);</SCRIPT>


HTH
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