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

[Arnd Wippermann]

Hi,

It seems you have to add a random number to the url.
You take as url the same as you take for your gml layer.

yourLayer.setUrl("XML1/FeatureGML.xml?A="+counter++); 

Arnd

-----Ursprüngliche Nachricht-----
Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
Auftrag von sunny74
Gesendet: Montag, 7. September 2009 20:32
An: users at openlayers.org
Betreff: Re: [OpenLayers-Users] Layer from GML loading only for the first
time


Hi,

Thanks for your reply.
I am afraid I have not understood the solution suggested by you.
You are saying to use the setURL to change the url for a gml layer after
layer creation.
Does that mean the following code:

map.addLayer(new OpenLayers.Layer.GML('choice_features',
 "XML1/FeatureGML.xml"))
after the creation of the above layer I use the setURL as below:
choice_features.setUrl("http://....");
Do i give just the Url for the GML file or do i need to add some random
number to it at the end.

Then  how do I load the above Url.

Regards.


Arnd Wippermann wrote:
> 
> Hi,
> 
> So far I rembember, there is a function setUrl to change the url for a 
> gml layer after layer creation. And also you link to the same as 
> previous, the new data will displayed.
> 
> So you don't need to add-remove-add your layer to display new data 
> from a GML vectorlayer.
> 
> yourLayer.setUrl("http://...."); should do the trick.
> 
> Arnd
> 
>  
> 
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org 
> [mailto:users-bounces at openlayers.org] Im Auftrag von sunny74
> Gesendet: Montag, 7. September 2009 13:29
> An: users at openlayers.org
> Betreff: Re: [OpenLayers-Users] Layer from GML loading only for the 
> first time
> 
> 
> 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:
>>> http://n2.nabble.com/Layer-from-GML-loading-only-for-the-first-time-
>>> t p3596382p3596382.html Sent from the OpenLayers Users mailing list 
>>> archive at Nabble.com.
>>> _______________________________________________
>>> Users mailing list
>>> Users at openlayers.org
>>> http://openlayers.org/mailman/listinfo/users
>>>
>> 
>> 
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>> 
>> 
> 
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> 359638
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