Hi @felix9607, for example, giving an array of ports
itemValueField parameter is used to uniquely define each item in the list and is used to determine which item is selected. It’s basicaly an id of item. In this case it should be set as itemValueField="‘id’". It might be any other unique field as well.
The second parameter
itemTextField is what you want to see in the list for this item. It can be port name itemTextField="‘name’", for instance.
If you need to display something more complex for item you can use
itemTemplate function which executes for each item and returns a value you want to see in the list. Have a look at “With a custom template for items” paragraph in demo.