[OpenLayers-Users] Layer from GML loading only for the first time

[Leich Tobias]

2) var timestamp = new Date().getTime();

   then add to the url of the gml-file:

   url += '?' + timestamp;

   so the server request looks something like this:

   http://your-server.com/XML1/file.gml?123455564

1) first, you should check the caching directives in order to disable
them.

   with IE you're installing the ieHTTPHeaders-plugin, display the
output window, 
   and then type in the url of your gml-file in the location field of
your browser.

   then you see something like this:

   (your request)
   GET http: //www.google.de/intl/de_de/images/logo.gif HTTP/1.0
   Accept: */*
   Referer: http://www.google.de/
   Accept-Language: de
   UA-CPU: x86
   Proxy-Connection: Keep-Alive
   [...]

   (the answer of the server)
   HTTP/1.0 200 OK
   Date: Mon, 07 Sep 2009 08:40:24 GMT
   Content-Length: 9121
   Content-Type: image/gif
   Expires: Tue, 07 Sep 2010 08:40:24 GMT
   Cache-Control: public, max-age=31536000
   Proxy-Connection: keep-alive
   Last-Modified: Wed, 07 Jun 2006 19:40:07 GMT

   look at the cache-control section. it says the your browser is
allowed to cache the file for 31536000 seconds.
   if you have something similar to this, check your webserver
configuration and documentation (!) to avoid this.

   greets, Tobias

--------------------------------------------------------------

Hi,

Thanks for your reply.
So how to do the following:

1) change the cache
settings on your webserver for the XML1 subdir (tell the browser to
never
cache the file)?

2) append a random number to the url?
Pls tell in details.

Regards.


Bart van den Eijnden (OSGIS)-2 wrote:
> 
> Hi,
> 
> you are probably running into browser cache. So either change the
cache
> settings on your webserver for the XML1 subdir (tell the browser to
never
> cache the file), or append a random number to the url.
> 
> Best regards,
> Bart
> 
>>
>> Dear Friends,
>>
>> I am having a query builder which allows an user to select one
feature at
>> a
>> time.
>> The geometry for this feature is then populated into a GML file
format
>> using
>> another xml.
>> So every time an user selects one feature the GML file is deleted and
a
>> new
>> one created with the geometry of the new feature.
>>
>> Although GML file is created with every change in selection
Openlayers is
>> unable to load the changed GML and show it on the map.
>>
>> So openlayers is able to display the data from the GML for the first
time
>> only. So from second and subsequent selection it shows only the first
>> feature on the map.
>>
>> The code is:
>>
>> map.addLayer(new OpenLayers.Layer.GML('choice_features',
>> "XML1/FeatureGML.xml"));
>>
>> Is it a bug?
>> If not how to tackle the problem.
>>
>> Thanks in advance.
>> --
>> View this message in context:
>>
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>> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>> _______________________________________________
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>>
> 
> 
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> 

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