Hi Eric
The code I am using (slightly simplified) is below. I am not calling
getZIndex, I have been assuming that it is called somehow as part of the
layer.destroy() function. The other relevant piece of information is that if
I repeat the layer.destroy() call I get the div is null error only on even
numbers: so first time is OK, 2nd time error, 3rd time OK again, 4th time
error....etc.
cityWFS = new OpenLayers.Layer.Vector("Cities", {
styleMap: cityStyle,
strategies: [new OpenLayers.Strategy.Fixed()],
protocol: new OpenLayers.Protocol.WFS.v1_1_0({
url:
"http://localhost/cgi-bin/mapserv.exe?map=c:/ms4w/apps/NewStart/htdocs/citie
s.map",
featureType: "Cities",
info_format: 'text',
hover: true,
maxFeatures: 100,
filter: cityFilter,
featureNS: "http://mapserver.gis.umn.edu/mapserver";
}) //protocol
});
if (cityHover==null){
var cityHover = new OpenLayers.Control.SelectFeature(cityWFS, {
hover: true,
highlightOnly: true,
overFeature: function(feature) {
"some code"
},
outFeature: function(feature) {
}
"more code"
});
}
map.addControl(cityHover);
cityHover.activate();
map.addLayer(cityWFS);
-----Original Message-----
From: Eric Lemoine [mailto:[email protected]]
Sent: 12 April 2010 09:38
To: [email protected]
Cc: [email protected]
Subject: Re: [OpenLayers-Users] vector layer destroyed twice throws error
On Mon, Apr 12, 2010 at 8:13 AM, Chris Green <[email protected]>
wrote:
> Hello List
>
>
>
> I am using OL 2.8 and have a vector layer that is populated with features
> via WFS. In my application I need to be able to remove and re-create the
> vector layer repeatedly, which I can perform once only but the second
time
> I call layer.detroy() I get the error this div is null thrown by the
> getZIndex function in Layer.js.
The error indicates that getZIndex is called on a destroyed layer. Is
it your code that calls getZIndex?
Cheers,
--
Eric Lemoine
Camptocamp France SAS
Savoie Technolac, BP 352
73377 Le Bourget du Lac, Cedex
Tel : 00 33 4 79 44 44 96
Mail : [email protected]
http://www.camptocamp.com
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