Am at my wit's end trying to remove a layer. Would welcome any suggestion on
the following. Essentially, I want to remove a layer called "foo" from my map,
so I may redraw "foo" with new data.
On Sep 25, 2011, at 9:04 AM, Mr. Puneet Kishor wrote:
> I spoke too soon...
>
> On Sep 24, 2011, at 3:58 PM, Mr. Puneet Kishor wrote:
>
>> I would like to remove a layer by name. The only method I see for removing
>> layer seems to take a layer object, which implies something like so
>>
>> var lyr_list = map.getLayersByName(name);
>>
>> Why does the above return a list? Under what use case would one have more
>> than one layer by the same name? In any case, I have all layers with unique
>> names, so the list would always have only one element.
>>
>> map.removeLayer(lyr_list[0]);
>>
>> The above works, but is there a more efficient or better way?
>
>
> Here is my code that does not work
>
> var lyrs = map.getLayersByName("a_layer");
> alert("got " + typeof(lyrs[0]) +
> " called " + lyrs[0].name +
> " with id " + lyrs[0].id);
> map.removeLayer(lyrs[0]);
>
> The alert window shows the correctly that it got an object with the right
> layer name and id. Yet, the layer is not removed from the map... at least, it
> is still visible, so when the new layer draws, I see a mess of features.
>
> What is my error?
>
> Thanks,
>
> Puneet.
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