//FeatureLayer GPgl2 = new FeatureLayer();
FeatureLayer GPgl2 = this.mainPage.MyMap.Layers["WellPermitsFL"] as FeatureLayer;
GPgl2.Where = String.Format("{0}='{1}'", "Type", "Expired");
GPgl2 .Update();
FeatureLayer tempWellFL = new FeatureLayer();
tempWellFL.Url = "gis.asdf.com/ArcGIS/rest/services/aaa/MapServer/0";
this. mainPage.MyMap.Layers.Add(tempWellFL);
//tempWellFL.Update();