ArcGISRuntime.UWP.Samples.FeatureLayerDefinitionExpression.FeatureLayerDefinitionExpression.OnApplyExpressionClicked C# (CSharp) Method

        private void OnApplyExpressionClicked(object sender, RoutedEventArgs e)
        {
            // Adding definition expression to show specific features only
            _featureLayer.DefinitionExpression = "req_Type = 'Tree Maintenance or Damage'";
        }