I am using a Vector Layer with WFS protocol to show only a subset of the data. The filter which defines the subset, changes dynamically from the code. How do I refresh the layer, to show only the data that satisfies the new filter?

layer.refresh(); does not work.

2 Answers 2


If your vector layer is called wfslayer, use the the force option on the refresh method like this:

wfslayer.refresh({force: true}); 
  • 1
    This also works for an OpenLayers.Layers.XYZ, let's say after an url-change with xyzLayer.setURL(), then just xyzLayer.redraw({force: true});
    – bennos
    Commented Oct 8, 2014 at 11:37

you could also do this:

var refresh = new OpenLayers.Strategy.Refresh({force: true, active: true});

and then as a strategy on the WMS layer :

strategies: [new OpenLayers.Strategy.Fixed(), refresh],

then call this where and when needed:



If you want to test, try this from your init() (onload property content) or in a document.ready block:

  /* Now reload the vector data every 20 seconds */
  setInterval(function () {

It has to show the async requests in the firebug console and under the tab too, if not your not calling it for some reason.

  • I can't get this to work. refresh.refresh() does not cause the layer to refresh. I can't see any request being sent in firebug. Commented Oct 17, 2012 at 3:49
  • Where are you calling this from ? can you show some code in your question? This comes from a production page so it has to work. Update your question with the code you have so far and we'll get this to work.
    – Glenn Plas
    Commented Oct 17, 2012 at 8:16
  • This worked for me. I needed to force the refresh on the Refresh Strategy itself to make my WFS layers trigger the refresh event and go get new data. Thanks.
    – Chris
    Commented Nov 16, 2012 at 22:55

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