Re: [flexcoders] F1.5: How to set dataprovider for Repeater-generated grids?

Wed, 26 Apr 2006 11:00:30 -0700

Hi,

I used the repeatEnd event to call a function that looped through the
length of the repeater items, and now I can successfully pull down data
for each datagrid's associated user -- woohoo! (I verified this by
looking at the recordsets via ServiceCapture). However, when I attempt
to assign the result set to the datagrid dataprovider (named
dgAssignments, which is correctly displaying as an array of 3 elements
via Chris C's Object Inspector), nothing appears to happen. Even more
confusing, when I dump the RO result to text using ObjectDumper, nothing
displays except a hyphen (-).  Without object dumper, I expected the old
[object object] at least, but I get undefined.

I think that once I get this part (getting the ro result assigned to the
DP), I think the rest of it will be pretty simple.

Anyone have any ideas that I can go with?

TIA, Tom

Postscript: Oops, here's my code:

<?xml version="1.0" encoding="utf-8" ?>
<mx:Application width="100%" height="100%"
xmlns:mx="http://www.macromedia.com/2003/mxml" xmlns="*"
backgroundColor="#3a6ea5" creationComplete="RO_FRS.GetFRSAssignees('');">

<Inspect />

<mx:Script>
    <![CDATA[
        import mx.controls.Alert;
        import mx.data.binding.ObjectDumper;
      
        public function doFault(event:Object):Void
            {
            alert("Error invoking CFC: " + event.fault.faultcode + ", " +
            event.fault.faultstring + ", " +
            event.fault.description + ", " +
            event.fault.detail);
            }
      
        public function getAssignments():Void
            {
             for (var i = 0; i < rp.dataProvider._items.length; i++)
                {
                RO_FRS.GetAssignedRequestByUserID(userWID[i].text);

                //kludge here just to view result set, I know it's three
records
                //because I did top 3 in the RO query
                if (i == 0)
                {ta0.text = RO_FRS.GetAssignedRequestByUserID.result;}
                else if (i == 1)
                {ta1.text = RO_FRS.GetAssignedRequestByUserID.result;}
                else
                {ta2.text = RO_FRS.GetAssignedRequestByUserID.result;}

               
dgAssignments[i].dataProvider=RO_FRS.GetAssignedRequestByUserID.result;
                }
            }
    ]]>
  
</mx:Script>

<mx:RemoteObject
        id="RO_FRS"
        endpoint="http://127.0.0.1:8301/flashservices/gateway?x=21"
        source="Tom.Remoting.RO_FRS"
        fault="doFault(event)" />

<mx:VBox>
    <mx:TextArea id="ta0" width="600"/>
    <mx:TextArea id="ta1" width="600"/>
    <mx:TextArea id="ta2" width="600"/>
</mx:VBox>

<mx:Tile marginBottom="10" borderStyle="inset" verticalGap="15"
id="tileAssignees"
        marginLeft="10" backgroundColor="#dddddd" marginTop="10"
marginRight="10"
        horizontalGap="10" direction="horizontal" autoLayout="false"
clipContent="false" >
      
    <mx:Repeater  id="rp" dataProvider="{RO_FRS.GetFRSAssignees.result}"
repeatEnd="getAssignments();">
        <mx:VBox>
            <mx:HBox>
                <mx:Label text="{rp.currentItem.ATFirstName}
{rp.currentItem.ATLastName}" fontWeight="bold" width="150"
textAlign="center"/>
                <mx:Label id="userWID" text="{rp.currentItem.ATUserId}"
fontWeight="bold" width="100" textAlign="center"/>
            </mx:HBox>
            <mx:DataGrid id="dgAssignments" rowCount="5" width="100%"
editable="false" dataProvider="" >  
                <mx:columns>
                    <mx:Array>
                        <mx:DataGridColumn columnName="Request_ID" 
headerText="RID" />
                        <mx:DataGridColumn
columnName="Status_Description" headerText="Status" />
                        <mx:DataGridColumn columnName="Requestor_Name"
headerText="Requestee" />
                        <mx:DataGridColumn
columnName="CategoryDescription" headerText="Cat" />
                    </mx:Array>
                </mx:columns>
            </mx:DataGrid>
        </mx:VBox>
    </mx:Repeater>
</mx:Tile>
  
</mx:Application>


Tom Sammons wrote:

>Hi all,
>
>Long time viewer, first time caller... [never mind, it's a pittsburgh thing]
>
>What I'm trying to accomplish is to populate a regular datagrid with
>records representing unassigned requests, and then use a repeater to
>display grids of current workload requests for a short list of
>personnel.  An administrator would drag and drop unassigned requests
>into the workload grids, and be able to drag/drop between workload grids
>as well for the purpose of balancing/spreading personnel work around.
>(Eventually, I want to be able to use shared objects to automatically
>update at the client level as well to improve the collaboration, but
>that's a different effort.)
>
>I've been unable to find a suitable example or solution that would
>demonstrate how one would set the dataProvider for datagrids generated
>by a Repeater.  Obviously, if I bind the provider during Repeater
>execution it will populate all the grids with the last remote object
>call.  (I'm not at all interested in using XML, although even that would
>give me a lead.)  From a performance aspect, I'm not positive that the
>repeater may not be the best way to go -- although Tracy posted
>something that says otherwise in 18378 -- but the workload grids will
>generally only be between 3 and 6 in count, and the repeater seems to
>handle that quite well from what I've seen so far, plus takes care of
>all the nice formatting.  Just so you know, F2 isn't an option right now.
>
>I'd really appreciate it if someone could provide an example of how I
>can populate the repeater grids with different remote object calls, and
>how I would use the event.target.getRepeaterItem during the drag
>function (since I'm not sure how to use that to reference a specific
>datagrid id in the repeater array --- did I say that right?).  I think
>once I have the former, I could figure out how to get all the other
>information I need.  I already know how to pass entire datagrid
>structures to ROs for updates, so I just need a friendly jumpstart to
>get my head around this Repeater stuff.
>
>Any help or pointers would be greatly appreciated, and I'll post the
>working code for others who might be interested as well.
>
>Tom
>
>
>
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