Thanks a lot for the code. I actually able to run the code and this is populating the values correctly to my combo box. But however on selection of any particular value the feature list turns out to be empty. Attaching the screen shot for that. Not sure why.
Any thoughts...
~Saurabh.
It seems that query task doesn't return results.You should implement your zoom in Combobox Selection CHanged event. private void QueryComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e) { GroupedFeatures features = e.AddedItems[0] as GroupedFeatures; if (features != null) { ESRI.ArcGIS.Client.Geometry.Envelope selectedFeatureExtent = gf.GetFeaturesExtent(); MyMap.ZoomTo(selectedFeatureExtent); } }