private void OnSurfaceSelectTapped(object sender, EventArgs e) { if (role != "nwgc") { var surfaceList = MetaDataForDropDown.SurfaceList(); if (surfaceList != null) { GenericListSelectorPage objCarryOutActivityListFilter = new GenericListSelectorPage(surfaceList); objCarryOutActivityListFilter.pickerHandler += (pickersender, pickerargs) => { SurfaceSelect.Text = pickerargs.pickerValue; }; Navigation.PushAsync(objCarryOutActivityListFilter); } } }