public override void SelectCategory() { AlertDialog.Builder builderSingle = new AlertDialog.Builder(this.Activity); builderSingle.SetTitle ("Select Category"); ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>( this.Activity, Android.Resource.Layout.SelectDialogSingleChoice); arrayAdapter.AddAll (categories.Categories); builderSingle.SetAdapter (arrayAdapter, this.ItemClicked); builderSingle.Show (); }