[Users] Automatically zooming to layer extent

[Peerasak Wangsom]

Dear all,

I try to automatically zoom map to maximum extent of layer after adding
layer to map.
I tried to code like this.

var layer = OpenLayers.Layer.WMS(.......);

map.addLayer(layer);

map.zoomToExtent(layer.getDataExtent());

But it doesnt' work. I also changed like this

map.zoomToExtent(layer.getMaxExtent());

It still doesn't work. What can I do to solve this issue.

Thank you.
wangsom
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