[OpenLayers-Users] Filter on WMS Polygon Layer

[adityakumar529]

Dear Users,
   I have a WMS layer where i want to do filter in terms of some criteria.
var Boundary3 = new OpenLayers.Layer.WMS("try",
            "http://localhost/ArcGIS/services/Ward/MapServer/WMSServer", 
            {'layers': '0', transparent:true, format: 'image/png'},
            {isBaseLayer: false},{'buffer':5});
			Boundary3.setVisibility(1);

For doing so I am using the following code.But I am not getting error every
time.

var filter = new OpenLayers.Filter.Comparison({
   type: OpenLayers.Filter.Comparison.EQUAL_TO,
   property: "Ward_Name",
   value: "Begur"});

var parser = new OpenLayers.Format.Filter.v1_1_0();
 var filterAsXml = parser.write(filter);
 var xml = new OpenLayers.Format.XML();
 var filterAsString = xml.write(filterAsXml);
 
 
 Boundary3.params["FILTER"] = filterAsString;
 
 Boundary3.redraw();


Requesting to please help on this.


Aditya Kumar
India Urban Space Foundation.



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GIS Developer
India Urban Space Foundation
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