1. Navigate to the desired Web Map onderdeel details

2. Klik Openen in kaartviewer

3. See the Web Map

4. Klik Inhoud

5. Klik op de Tabel tonen icoon under the desired layer

Opmerking: This example uses the Pradan geometry – Polygon layer

6. See the Table View

7. Klik Opties

8. Klik Add Field

9. Fill out all content

Opmerking: This example uses double type for its numerical field for area in hectares

10. Klik Add New Field

11. See the new Field in the Table

Opmerking: This example uses the Hectares field

12. Click on the field name, Hectares

13. Klik op Calculate

14. De Calculate Field window appears

15. Fill out the SQL Expression

Expression: POWER(Shape__Area,2)/10000

Explanation: The Shape_Area field is in meters. In order to convert meters to hectares, you must base the expression on the following equation: Ha = m2/1,000

16. Klik Calculate

17. See that the Hectares field has been calculated