This section describes how you can put constraints on the objects being shown in a data grid, reference selector and reference set selector with the use of XPath.
Select the widget you want to apply XPath to.
In the Properties window, press the ‘…’ button next to ‘XPath constraint’.
In the menu that appears, enter the XPath constraint you want to use.
For example in the picture, the XPath constraint constrains the display of orders in a data grid so that a customer is only able to see his own orders.