topic Re: check if files exist on server? in ArcGIS API for Flex Questions

check if files exist on server?

NatashaManzuiga — Mon, 06 Sep 2010 12:01:17 GMT

Hi, how can I test if an image files exist on server in Flex 3.0?

Thanks in advance

Re: check if files exist on server?

RobertScheitlin__GISP — Tue, 07 Sep 2010 11:22:05 GMT

Natty,

Try something like this:

loader.contentLoaderInfo.addEventListener(IOErrorE vent.IO_ERROR, imgLoadErrorMethod);

Re: check if files exist on server?

NatashaManzuiga — Sat, 11 Dec 2021 21:34:09 GMT

Natty,

Try something like this:

loader.contentLoaderInfo.addEventListener(IOErrorE vent.IO_ERROR, imgLoadErrorMethod);

Hi Robert!!
Thanks, I tried with the following code:
Now I want to ask u how can I set a value to the MiniSearch widget textbox from the SearchWidget..Can u help me with this?

       
       public function IOErrorEventHandler(imgx:String):void {

          var loader:Loader = new Loader();
          loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete);
          loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
          var request:URLRequest = new URLRequest(imgx);
          loader.load(request);
      }
      private function onComplete (evt : Event) : void
   {
                  infoImage.source = "Images/" + infoData.title + ".jpg";
    infoImage.height = 150;
    infoImage.width = 190;
    infoImage.visible = true;
    infoImage.includeInLayout = true;
   }
      private function ioErrorHandler(event:IOErrorEvent):void {
    infoImage.visible = false;
    infoImage.includeInLayout = false;
      }

Re: check if files exist on server?

RobertScheitlin__GISP — Wed, 08 Sep 2010 13:49:20 GMT

Natty,

Can you be a little more specific? Are you wanting to send the image that you got to the MiniSearch or just a string value? I need to have a clear idea of your desired work flow.

Re: check if files exist on server?

NatashaManzuiga — Wed, 08 Sep 2010 14:25:16 GMT

Natty,

Can you be a little more specific? Are you wanting to send the image that you got to the MiniSearch or just a string value? I need to have a clear idea of your desired work flow.

Hi Robert, just a string value to the MiniSearch widget :)))

Thanks,

Naty

Re: check if files exist on server?

RobertScheitlin__GISP — Wed, 08 Sep 2010 14:45:16 GMT

Naty,

OK I need just a little bit more. Remind me you put the MiniSearch in your Index.mxml right? Does the MiniSearch have an id attribute and if so what is it? Basically we will have to get a reference to the MiniSearch throught the SearchWidget using parrentApplication and then using the id of the minisearch and the id of the textInput.

Re: check if files exist on server?

NatashaManzuiga — Wed, 08 Sep 2010 15:55:42 GMT

Naty,

OK I need just a little bit more. Remind me you put the MiniSearch in your Index.mxml right? Does the MiniSearch have an id attribute and if so what is it? Basically we will have to get a reference to the MiniSearch throught the SearchWidget using parrentApplication and then using the id of the minisearch and the id of the textInput.

Robert, yes I put the MiniSearch in my index.html
how can I get the Id?
Thanks,

Naty
<SiteContainer id="container">
    <configManager> <ConfigManager/> </configManager>
       <uiManager>     <UIManager/>     </uiManager>
       <controller>    <Controller x="20" y="20"/>    </controller>
       <dataManager>   <DataManager/>   </dataManager>
       <widgetManager> <WidgetManagerDocked/> </widgetManager>
       <mapManager> <MapManager/> </mapManager>
</SiteContainer>
<widgets:MiniSearch x="20" y="420" />

Re: check if files exist on server?

RobertScheitlin__GISP — Wed, 08 Sep 2010 16:40:27 GMT

Naty,

Add an id to the minisearch like so:

<widgets:MiniSearch id="miniSearch" top ="120" left="50"/>

then you need to do call this from where ever

this.parentApplication.miniSearch.ti.text = "hello";

Re: check if files exist on server?

NatashaManzuiga — Thu, 09 Sep 2010 13:28:58 GMT

Naty,

Add an id to the minisearch like so:
<widgets:MiniSearch id="miniSearch" top ="120" left="50"/>
then you need to do call this from where ever
this.parentApplication.miniSearch.ti.text = "hello";

Thank u so much Robert it fixes my problem!!
I read a XML to populate a combobox inside my MiniSearch...now I wish I could select a value from a click...Is it possible?

Thanks,
Naty

Re: check if files exist on server?

RobertScheitlin__GISP — Thu, 09 Sep 2010 13:37:48 GMT

Naty,

Sure it's possible can you post your MiniSearch.mxml?

Re: check if files exist on server?

NatashaManzuiga — Thu, 09 Sep 2010 14:00:58 GMT

I sent u the Minisearch and the XML source 🙂 I wish I could select building and plan passing @dgn value...
Thank u soooooo much,
Naty

Naty,

Sure it's possible can you post your MiniSearch.mxml?

Re: check if files exist on server?

NatashaManzuiga — Thu, 09 Sep 2010 14:03:52 GMT

I wish I could select building and plan passing @dgn value..

I sent u the Minisearch and the XML source 🙂 I wish I could select building and plan passing @dgn value...
Thank u soooooo much,
Naty

Re: check if files exist on server?

RobertScheitlin__GISP — Sat, 11 Dec 2021 21:34:12 GMT

Naty,

Hmm... Explain to me the desired work flow?

Right now even your xml is malformed...

Should look like this
<?xml version="1.0" encoding="utf-8"?>
<Buildings>
    <Building name='1'>
        <Plan code='P1' dgn='1p1.dgn'/>
        <Plan code='PT' dgn='1pt.dgn'/>
        <Plan code='S1' dgn='1s1.dgn'/>
     </Building>
    <Building name='11O'>
        <Plan code='PT' dgn='11opt.dgn'/>
        <Plan code='S1' dgn='11os1.dgn'/>
    </Building>
</Buildings>
NOT
 <Plan code='S1' dgn='11os1.dgn'/Plan>

Re: check if files exist on server?

NatashaManzuiga — Sat, 11 Dec 2021 21:34:15 GMT

Robert, yes u are right!!
Sorry I sent u the first version of my XML and u have to replace "/Plan" with "/" but u know this.
What I want to do is that after I performed a query from SearchWidget I obtain RecordData as result....when I click one record I stored a variable named DGN that is the same of these related combobox...so it should work like this: I click the record I pass the DGN value and this set the corresponding Building and Plan in this minisearch widget. like to show where I am 🙂
I hope I m clear now. 🙂
Naty

Naty,

Hmm... Explain to me the desired work flow?

Right now even your xml is malformed...

Should look like this
<?xml version="1.0" encoding="utf-8"?>
<Buildings>
    <Building name='1'>
        <Plan code='P1' dgn='1p1.dgn'/>
        <Plan code='PT' dgn='1pt.dgn'/>
        <Plan code='S1' dgn='1s1.dgn'/>
     </Building>
    <Building name='11O'>
        <Plan code='PT' dgn='11opt.dgn'/>
        <Plan code='S1' dgn='11os1.dgn'/>
    </Building>
</Buildings>
NOT
 <Plan code='S1' dgn='11os1.dgn'/Plan>

Re: check if files exist on server?

RobertScheitlin__GISP — Sat, 11 Dec 2021 21:34:18 GMT

Naty,

Took me a little while to find the time but here is the solution.

this.parentApplication.miniSearch.Building.selectedItem = this.parentApplication.miniSearch.dp.Building.Plan.(@dgn == "1pt.dgn").parent();
    this.parentApplication.miniSearch.Plan.selectedItem = this.parentApplication.miniSearch.dp.Building.Plan.(@dgn == "1pt.dgn");

Re: check if files exist on server?

NatashaManzuiga — Sat, 11 Dec 2021 21:34:20 GMT

Naty,

Took me a little while to find the time but here is the solution.

this.parentApplication.miniSearch.Building.selectedItem = this.parentApplication.miniSearch.dp.Building.Plan.(@dgn == "1pt.dgn").parent();
    this.parentApplication.miniSearch.Plan.selectedItem = this.parentApplication.miniSearch.dp.Building.Plan.(@dgn == "1pt.dgn");

Thanks so much Robert!!
I still have refresh problem with the dependent combobox...Plan..
Sometimes if I dont run two times this code...it doesnt work :confused:

Naty

Re: check if files exist on server?

NatashaManzuiga — Sat, 11 Dec 2021 21:34:23 GMT

Hi Robert!!
Thanks, I tried with the following code:
Now I want to ask u how can I set a value to the MiniSearch widget textbox from the SearchWidget..Can u help me with this?

       
       public function IOErrorEventHandler(imgx:String):void {

          var loader:Loader = new Loader();
          loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete);
          loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
          var request:URLRequest = new URLRequest(imgx);
          loader.load(request);
      }
      private function onComplete (evt : Event) : void
   {
                  infoImage.source = "Images/" + infoData.title + ".jpg";
    infoImage.height = 150;
    infoImage.width = 190;
    infoImage.visible = true;
    infoImage.includeInLayout = true;
   }
      private function ioErrorHandler(event:IOErrorEvent):void {
    infoImage.visible = false;
    infoImage.includeInLayout = false;
      }

Hi Robert,

It doesnt work with PDF... :((((
Can u help me?

Thanks

Naty

Re: check if files exist on server?

RobertScheitlin__GISP — Thu, 03 Feb 2011 12:39:55 GMT

Naty,

What doesn't work? What are you trying to do? What does your code changes look like when you try to make this work for pdfs? This was a while ago that I help you with this and I am not even sure what you were doing here...

Re: check if files exist on server?

NatashaManzuiga — Thu, 03 Feb 2011 13:57:03 GMT

Naty,

What doesn't work? What are you trying to do? What does your code changes look like when you try to make this work for pdfs? This was a while ago that I help you with this and I am not even sure what you were doing here...

Hi Robert.
I can perfectly check if there is a .jpg file in my server. I m so thankful to u about this!
I want to use the same code that u see below to test if there is a PDF file or not but it doesnt work 😞
Naty


public function IOErrorEventHandler(imgx:String):void {

          var loader:Loader = new Loader();
          loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete);
          loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
          var request:URLRequest = new URLRequest(imgx);
          loader.load(request);
      }
      private function onComplete (evt : Event) : void
   {
    var nameBuilding:String = Building1.selectedItem.@dgn;
    nameBuilding="CleanPrintA4/" + nameBuilding.toString().substr(0,nameBuilding.length-4) + ".pdf";
    var u:URLRequest = new URLRequest(nameBuilding);
    navigateToURL(u, "_blank");
   }
      private function ioErrorHandler(event:IOErrorEvent):void {

      }

Re: check if files exist on server?

RobertScheitlin__GISP — Thu, 03 Feb 2011 14:01:10 GMT

Naty,

With the code you just posted you are attempting to load a PDF file into an image control which is not supported. There is no PDF viewer component in Flex by default.