topic Re: Search results to grid. in ArcGIS API for Flex Questions

Search results to grid.

AmandaHutsel — Thu, 24 May 2012 15:22:31 GMT

I'm trying to search a feature layer and have the results show on a map and also in a grid. Both are working, the bug is that when you hit the "Find" button once the results show on the map and then you have to hit it a second time for the results to show in the grid. Any ideas on solving this would be helpful. Here is my search function code:

var featureset:FeatureSet;

private function doHSearch():void
{
var str:String="Street_Address like '%" + addressText.text+"%'";

if(statusText.selectedIndex != -1)
{
str=str+ " and ConStatus = '" + String(statusText.selectedItem) + "'";
}

if (refText.text != "")
{
str=str+" and ReferenceNo = "+ refText.text
}

if (apnText.text != "")
{
str=str+ " and AssessorParcelNo = " + apnText.text
}

historic.definitionExpression=str;

featureset = new FeatureSet(ArrayCollection(historic.graphicProvider).toArray());
ResultsGrid.dataProvider = featureset.attributes;
}

Re: Search results to grid.

ThomasMcCracken — Thu, 24 May 2012 18:58:28 GMT

Amanda,

That's strange functionality. Are you sure it's just not taking a while for the data to load into the grid? Sometimes it takes a while for large feature sets to show up into the datagrid. I would try waiting a little while before hitting the button again. Otherwise, that's weird. A second button click should be the same command as the first...

Thomas McCracken
GIS Analyst
Georgia Power Company

Re: Search results to grid.

AmandaHutsel — Thu, 24 May 2012 19:11:41 GMT

I've waited 5 minutes and nothing happens until I hit the find button again.

Re: Search results to grid.

KenBuja — Thu, 24 May 2012 19:14:51 GMT

What's the code behind the Find button (and it helps if you put the code inside the Code tags)?

Re: Search results to grid.

AmandaHutsel — Thu, 24 May 2012 19:20:29 GMT

The code for the find button is this:

<s:Button click="doHSearch()" label="FIND"/>

I'm not really sure what you mean by "it helps if you put the code inside the Code tags".

Re: Search results to grid.

IvanBespalov — Sat, 11 Dec 2021 18:19:54 GMT

Amanda,
what is your debugger shows?
Debugging Flex 4 applications (Adobe)

historic is smthing like FeatureLayer? listen it's update events. When the layer has finished updating its content - get graphicProvider and "play" with features.

...
historic.addEventListener(LayerEvent.UPDATE_END, onHistoricUpdateEnd);
...
protected function onHistoricUpdateEnd(event:LayerEvent):void
{
    if (event.updateSuccess)
    { 
        trace("layer 'historic' update success");
        var historicGraphicProvider:ArrayCollection = historic.graphicProvider as ArrayCollection;
        if (historicGraphicProvider && historicGraphicProvider.length > 0)
        {
            trace(historicGraphicProvider.length + " features found");
            featureset = new FeatureSet(historicGraphicProvider.toArray());
            ...
        }
    }
    else
    {
        trace("layer 'historic' update not success");
    }
}
...

here is working sample - using defenitionExpression
here is working sample with sources - using query (all conditions you can put as where clause string "address like ...")