[OpenLayers-Users] Re: Why WFS Layer is displaying very slowely over Google Map.

[Ryan Williams]

Have you looked at the Geoserver documentation for filtering?
http://docs.geoserver.org/stable/en/user/filter/function.html

I do something similar to what you want to do, retrieve text from a text 
box and use that to search for a feature and then draw the feature on 
the map. I use WFS GetFeature and the OGC filtering. Sorry, I don't have 
a concise code example handy at the moment.
The way I do it, the 'onClick' value of the button the user clicks to 
start the search runs a function that puts the variables into the WFS 
GetFeature request and filter and then calls OpenLayers.loadURL().

Ryan

On 3/4/2011 9:26 AM, Mustafa646 wrote:
> I am not going to click on feature to get feature's info. I need a different
> scenario.
>
> In my case, The requirement is to highlight a specific feature under Button
> click event.  Actually I have a Button and Textbox. The user puts some value
> in textbox and press the button, Under Button click event, Textbox value
> needs to compare with specific column value  of all the features (3500
> features) in loop. And finally, one feature will be selected based on
> comparision.
>
> so, for this reason, i need all the features displayed over google map
> before performing the above action. Now, Please guide me How I can draw
> Vector Layer fastly. OR is there any other way to solve this problem?
>
> Regards
>
>
>
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-- 
Ryan Williams, GISP
GIS Analyst / Programmer
PAQ Interactive Inc.
Monticello, IL
www.paqinteractive.com