[OpenLayers-Users] How to remove and reload a GML layer - solved

[Robert Sanson]

Hi
 
The trick to getting the reload layer to work was to add a dummy parameter to the end of the URL, so the browser thought it was a new request.
 
Cheers,
 
Robert 

>>> "Robert Sanson" <SansonR at asurequality.com> 18/09/2008 12:03 p.m. >>>
Does anyone know how to remove and reload a GML layer?
 
I have a layer added to my map as:
 
va map, fbnd;
 
fbnd = new OpenLayers.Layer.GML("Farm boundary",
                "http://10.65.192.1/cgi-bin/agbwfs.exe?farmid="+farmid+"&request=getfeature&typename=farm&service=wfs&version=1.0.0&BBOX="+x1+","+y1+","+x2+","+y2+"&maxfeatures=120 ( 'http://10.65.192.1/cgi-bin/agbwfs.exe?farmid="+farmid+"&amp;request=getfeature&amp;typename=farm&amp;service=wfs&amp;version=1.0.0&amp;BBOX="+x1+","+y1+","+x2+","+y2+"&amp;maxfeatures=120' )",
                {singleTile: true, style: farm_style, extractAttributes: true});
              map.addLayer(fbnd);
 
I then do some edits to the database.
 
I now want to remove it and reload it, based on a user clicking a button
 
I tried:
 
map.removeLayer(fbnd,false); 
 
This works, but then iI tried to reload it as:
 
fbnd = new OpenLayers.Layer.GML("Farm boundary",
                "http://10.65.192.1/cgi-bin/agbwfs.exe?farmid="+farmid+"&request=getfeature&typename=farm&service=wfs&version=1.0.0&BBOX="+x1+","+y1+","+x2+","+y2+"&maxfeatures=120 ( 'http://10.65.192.1/cgi-bin/agbwfs.exe?farmid="+farmid+"&amp;request=getfeature&amp;typename=farm&amp;service=wfs&amp;version=1.0.0&amp;BBOX="+x1+","+y1+","+x2+","+y2+"&amp;maxfeatures=120' )",
                {singleTile: true, style: farm_style, extractAttributes: true});
              map.addLayer(fbnd);
 
This seems to load the same data without forcing a refresh.
 
Any clues?
 
Many thanks,
 
Robert




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