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javatype-conversionconvertersvaadin
Simon S.
Simon S.

Reputation: 65

Vaadin: Use custom Converter for ListSelect

Is it possible to use a custom Converter for the ListSelect Component? This is what I tried:

ListSelect ls = new ListSelect();
ls.setConverter((Converter) new MyCustomConverter());

ObjectToDisplay ots = new ObjectToDisplay();

// ls.setConvertedValue(ots ); // Converter is called but ListSelect stays empty 
lsConstruction.addItem(ots ); // Did not work

However, the ListSelect stays empty after adding a value.

Thanks for any help!

Upvotes: 0

Views: 469

Answers (1)

Axel Meier
Axel Meier

Reputation: 1127

Use setItemCaption():

final ListSelect ls = new ListSelect ();
final BeanItemContainer<ObjectToDisplay> container = new BeanItemContainer<>(ObjectToDisplay.class, objectList);
ls.setContainerDataSource(container);
for (final ObjectToDisplay o : objectList){
    ls.setItemCaption(o, yourDesiredFormatFunction(o));
}

Adding object programmatically would be done with container.addItem(object).

Regarding the use of Converters: this post elaborates on Converters used with AbstractSelect implementations such as ListSelect and ComboBoxes.

Upvotes: 1

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