Trees and Unmanaged Dropdown Lists

Does anybody know if it's possible to create heirarchical property value lists? For example, we want to have a keyword system for documents and users with some top-level categories and then some more specific categories under them, and not just one long unorganized list. Is this possible to do using trees and/or unmanaged dropdown lists? I'm not sure how to make these. Do you have to insert a table into SQL server somewhere?

Yes, you can do this. I don't have the benefit of access to my database from where I am at the moment, so please pardon me if I get some of this wrong.
* There's a sample table in your primary portal database called something like "samplepicklist" - that will show you the data structure
* You create a tree property
* Bind that property to the table...
In my case I'm using it to provide a region/country hierarchy list for user info.
1) Property is named "Country (by Region)"
2) Set values to...
        - Property is visible in the UI (checked)
        - Searchable (checked)
        - Type is "Tree" (when you select this the screen will change)
3) got a view together - view is called "vw_PTProfile_RegionCountries". Set the Database Table Name setting to the name of your view or table.
4) Provide your hierarchy info. There are two bits - display/storage value name and ordering key. In my case my values look like...
    PICK COLUMN                        SORT ORDER
    rgn_descr                              rgn_id
    country_descr                        country_id
Blammo - done. I now have a hierarchical region/country list.
NOTES:
* I'd suggest using a view so you can link to other data sources, etc. and not worry as much about shaping the data the way the portal needs it
* The property works on most classes of objects EXCEPT documents. This isn't an issue with the property as much as the document property editing approach ("documents are special objects")
That help?
I love these kinds of things and want to make best use of them myself, so if anyone has any ideas on how to kick the portal into overdrive using properties (or sees that I'm mis-using this approach or steered Dave in the wrong direction) please, please do respond to this thread.
Thanks,
Eric

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<b>
Just copy, paste and execute this program !!</b>
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<b>
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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
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            import mx.rpc.events.FaultEvent;
            import mx.rpc.events.ResultEvent;
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                        removeItems();
                            //FlexDnDRemoteService.process(eid,"move",spth,dpth);
                    else
                        //FlexDnDRemoteService.process(eid,"copy",spth,dpth);
                    tree.validateNow();
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                var dropData:Object=tree.mx_internal::_dropData as Object;
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                    return dropData.parent;
                else
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                    return renderer.data;
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                //remove moved elements
                var items:Array=treedropevt.dragSource.dataForFormat("items") as Array;
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            public function onTreeDragDrop(event:DragEvent):void
                treedropevt=event;
                showAlert();
                event.preventDefault();
                tree.hideDropFeedback(event);
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                Alert.show("Success", "Status");
            public function faultHandler(event:FaultEvent):void
                Alert.show(event.fault.faultString, "Failure");
        ]]>
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    <mx:ArrayCollection id="listDP">
        <mx:Object label="File1.dnd"/>
        <mx:Object label="File2.dnd"/>
        <mx:Object label="File3.dnd"/>
        <mx:Object label="File4.dnd"/>
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    <mx:ArrayCollection id="treeDP">
        <mx:Object label="/dndDest">
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                <mx:ArrayCollection>
                    <mx:Object label="sample1.ks"/>
                    <mx:Object label="sample2.ks"/>
                    <mx:Object label="sample3.ks"/>
                    <mx:Object label="sample4.ks"/>
                    <mx:Object label="sample5.ks"/>
                    <mx:Object label="sample6.ks"/>
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            </mx:children>
        </mx:Object>
    </mx:ArrayCollection>
    <mx:List id="list"
             itemRollOver="lastRollOverIndex = event.rowIndex"
             width="50%"
             dragEnabled="true"
             dataProvider="{listDP}"
             labelField="label"
             allowMultipleSelection="true"
             dragMoveEnabled="false">
    </mx:List>
    <mx:Tree id="tree"
             width="50%"
             dragEnabled="true"
             dataProvider="{treeDP}"
             dragEnter="onTreeDragEnter(event)"
             dragOver="onTreeDragOver(event)"
             dragExit="onTreeDragExit(event)"
             dragDrop="onTreeDragDrop(event)"
             labelField="label"
             liveScrolling="true">
    </mx:Tree>
    <mx:RemoteObject id="FlexDnDRemoteService"
                     showBusyCursor="true"
                     destination="FlexDnD">
        <mx:method name="process"
                   result="resultHandler(event)"
                   fault="faultHandler(event)"/>
    </mx:RemoteObject>
</mx:Application>
Thanks,
Rajiv

Ya , i have searched and have used the same code.
But needed to customize few things like:
stop dnd in same tree
drop some item into a folder ..( onto it ) etc
have achieved the same .. but this issue ..
i think the tree dataprovider (contents internally is not being updated .. only the UI)
any suggestions ?
- Rajiv

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using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
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class ProvCountries
public string country_code { get; set; }
public string country_name { get; set; }
static class DataDistinct
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HashSet<TKey> seenKeys = new HashSet<TKey>();
foreach (TSource element in source)
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Thanks,
Dennis Guo
TechNet Community Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Dennis Guo
TechNet Community Support

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