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check if files exist on server?

NatashaManzuiga

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

Thanks in advance

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NatashaManzuiga

Many thanks Dasa and Robert...
I finally fixed it...
Robert is it possible to run this OnComplete function from the menu?
I wish I could launch PDF by the menu...based on "Building1.selectedItem.@dgn"

Cheers,

Naty

Hi all, I almost solved my problem..
1) I added a "link" in config.xml
2) I modified the function "menuItemClick()" in the ControllerMenuItem.mxml and by the "label" value I assigned at my link I can call all the URL I want by code...so I can bypass the URL in config.xml.
My problem is that I still cant get the value in my MiniSearch widget...
How can I get the value Robert?
Thanks,

Naty

NatashaManzuiga

Dasa,

Thanks for the tip.

Naty,

Based on Dasa's advice this works:

   public function IOErrorEventHandler(imgx:String):void {
    
    var loader:URLLoader = new URLLoader();
    loader.dataFormat = URLLoaderDataFormat.BINARY;
    loader.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
    loader.addEventListener(ProgressEvent.PROGRESS, onComplete); 
    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.leng th-4) + ".pdf";
    var u:URLRequest = new URLRequest(nameBuilding);
    navigateToURL(u, "_blank");
   }
   private function ioErrorHandler(event:IOErrorEvent):void {
    trace(event.toString());
   }

Many thanks Dasa and Robert...
I finally fixed it...
Robert is it possible to run this OnComplete function from the menu?
I wish I could launch PDF by the menu...based on "Building1.selectedItem.@dgn"

Cheers,

Naty

RobertScheitlin__GISP

Dasa,

Thanks for the tip.

Naty,

Based on Dasa's advice this works:

   public function IOErrorEventHandler(imgx:String):void {
    
    var loader:URLLoader = new URLLoader();
    loader.dataFormat = URLLoaderDataFormat.BINARY;
    loader.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
    loader.addEventListener(ProgressEvent.PROGRESS, onComplete); 
    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.leng th-4) + ".pdf";
    var u:URLRequest = new URLRequest(nameBuilding);
    navigateToURL(u, "_blank");
   }
   private function ioErrorHandler(event:IOErrorEvent):void {
    trace(event.toString());
   }

DasaPaddock

If you're only trying to test if you get an error or not, you could try using a URLLoader instead of a Loader.
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/URLLoader.html

RobertScheitlin__GISP

Naty,

You can only use the loader object for certain types of images. It will not work for pdf files. If you had a trace statement in your error function you could see that it is error with an unknown file type error. If you Google how to verify that a file exists on the server you will see that this has to be done with server side code like PHP or ASP.

NatashaManzuiga

Hi Robert,
Could u test this function with a pdf file?
Cheers,

Naty

NatashaManzuiga

Naty,

What is the string that you are passing in for the imgx? Is it the same as the nameBuilding?

public function IOErrorEventHandler(imgx:String):void {

var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete);
loader.contentLoaderInfo.addEventListener(IOErrorE vent.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.leng th-4) + ".pdf";
var u:URLRequest = new URLRequest(nameBuilding);
navigateToURL(u, "_blank");
}
private function ioErrorHandler(event:IOErrorEvent):void {

}

Yes Robert, I tried with full and relative path too..but it doesnt work anyway.
Thanks
Naty

RobertScheitlin__GISP

Naty,

What is the string that you are passing in for the imgx? Is it the same as the nameBuilding?

public function IOErrorEventHandler(imgx:String):void {

var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete);
loader.contentLoaderInfo.addEventListener(IOErrorE vent.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.leng th-4) + ".pdf";
var u:URLRequest = new URLRequest(nameBuilding);
navigateToURL(u, "_blank");
}
private function ioErrorHandler(event:IOErrorEvent):void {

}

NatashaManzuiga

Sorry it was just a sample...I corrected it...

Thanks.
Naty

Hi Robert...I corrected it but it still doesnt work 😞
Is there another function to do this that work with PDF files?

Thanks,
Naty!

NatashaManzuiga

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.

Sorry it was just a sample...I corrected it...

Thanks.
Naty

RobertScheitlin__GISP

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.

NatashaManzuiga

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 {

      }

RobertScheitlin__GISP

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...

NatashaManzuiga

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

NatashaManzuiga

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

Naty

RobertScheitlin__GISP

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");

NatashaManzuiga

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>

RobertScheitlin__GISP

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>

NatashaManzuiga

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

NatashaManzuiga

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?

MiniSearch.zip

RobertScheitlin__GISP

Naty,

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

NatashaManzuiga

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

RobertScheitlin__GISP

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";

NatashaManzuiga

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" />

RobertScheitlin__GISP

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.

NatashaManzuiga

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

RobertScheitlin__GISP

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.

NatashaManzuiga

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;
      }

RobertScheitlin__GISP

Natty,

Try something like this:

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

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